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Type of average of a collection of numbers
mathematics and statistics, the arithmetic mean ( /ˌærɪθˈmɛtɪk/ arr-ith-MET-ik), arithmetic average, or just the mean or average is the sum of a collection
Arithmetic_mean
Statistical amount
The weighted arithmetic mean is similar to an ordinary arithmetic mean (the most common type of average), except that instead of each of the data points
Weighted_arithmetic_mean
N-th root of the product of n numbers
the product of their values (as opposed to the arithmetic mean, which uses their sum). The geometric mean of n {\displaystyle n} numbers is the nth
Geometric_mean
Arithmetic mean is greater than or equal to geometric mean
mathematics, the inequality of arithmetic and geometric means, or more briefly the AM–GM inequality, states that the arithmetic mean of a list of non-negative
AM–GM_inequality
Numeric quantity representing the center of a collection of numbers
purpose. The arithmetic mean, also known as "arithmetic average", is the sum of the values divided by the number of values. The arithmetic mean of a set of
Mean
Generalization of means
quasi-arithmetic mean or generalised f-mean or Kolmogorov-Nagumo-de Finetti mean is one generalisation of the more familiar means such as the arithmetic mean
Quasi-arithmetic_mean
Inverse of the average of the inverses of a set of numbers
only. The harmonic mean is the reciprocal of the arithmetic mean of the reciprocals of the numbers, that is, the generalized f-mean with f ( x ) = 1 x
Harmonic_mean
Mathematical function of two positive real arguments
mathematics, the arithmetic–geometric mean (AGM or agM) of two positive real numbers x and y is the mutual limit of a sequence of arithmetic means and a sequence
Arithmetic–geometric_mean
Statistical error measure
{\sum _{i=1}^{n}\left|e_{i}\right|}{n}}.} It is thus the arithmetic mean of the absolute errors | e i | = | y i − x i | {\displaystyle |e_{i}|=|y_{i}-x_{i}|}
Mean_absolute_error
Difference of two numbers divided by the logarithm of their quotient
{\displaystyle x,y>0} . The logarithmic mean of two numbers is smaller than the arithmetic mean and the generalized mean with exponent greater than 1. However
Logarithmic_mean
Alias for the UTC+00:00 time zone
GMT is the annual average (the arithmetic mean) moment of this event, which accounts for the word "mean" in "Greenwich Mean Time". Originally, astronomers
Greenwich_Mean_Time
Method for calculating average values
vector mean is arctan(1/2) = 26.565°. Moreover, with the arithmetic mean the circular variance is only defined ±180°. Since the arithmetic mean is not
Circular_mean
Classical averages studied in ancient Greece
three classical Pythagorean means are the arithmetic mean (AM), the geometric mean (GM), and the harmonic mean (HM). These means were studied with proportions
Pythagorean_means
contraharmonic mean of a set of positive real numbers is defined as the arithmetic mean of the squares of the numbers divided by the arithmetic mean of the numbers:
Contraharmonic_mean
Number taken as representative of a list of numbers
mathematics, it most commonly refers to the arithmetic mean, but may also refer to other measures such as other types of mean, the median, or the mode. The most
Average
N-th root of the arithmetic mean of the given numbers raised to the power n
mass spectrum. Arithmetic–geometric mean Average Heronian mean Inequality of arithmetic and geometric means Lehmer mean – also a mean related to powers
Generalized_mean
Mathematical relationships
the mean inequality chain, state the relationship between the harmonic mean (HM), geometric mean (GM), arithmetic mean (AM), and quadratic mean (QM;
QM–AM–GM–HM_inequalities
Square root of the mean square
of values (or a continuous-time waveform) is the square root of the arithmetic mean of the squares of the values, or the square of the function that defines
Root_mean_square
Measure of statistical dispersion
relative mean absolute difference, which is the mean absolute difference divided by the arithmetic mean, and equal to twice the Gini coefficient. The mean absolute
Mean_absolute_difference
Distance from the Earth surface to a point near its center
}R_{c}^{-1}(\theta )\;d\theta .} The mean curvature R m − 1 {\displaystyle R_{\text{m}}^{-1}} equals the arithmetic mean of the two principal curvatures and
Earth_radius
Predicted elapsed time between inherent failures of a system during operation
calculated as the arithmetic mean (average) time between failures of a system. The term is used for repairable systems while mean time to failure (MTTF)
Mean_time_between_failures
Generalization of centroids to metric spaces
and Hermann Karcher. On the real numbers, the arithmetic mean, median, geometric mean, and harmonic mean can all be interpreted as Fréchet means for different
Fréchet_mean
Geometric shape
the length of its radius is the arithmetic mean of a and b (since the radius is half of the diameter). The geometric mean can be found by dividing the diameter
Semicircle
Statistical value representing the center or average of a distribution
the late 1920s. The most common measures of central tendency are the arithmetic mean, the median, and the mode. A middle tendency can be calculated for
Central_tendency
Measured values that are relatively normal for a particular medical test
standard deviation and the population mean is estimated by the sample mean (also called mean or arithmetic mean). To account for these estimations, the
Reference_range
the arithmetic mean of these numbers: xIQM = (5 + 6 + 6 + 7 + 7 + 8) / 6 = 6.5 This is the interquartile mean. For comparison, the arithmetic mean of the
Interquartile_mean
Measure of quality of a stimulus or system
engineering, representing overall quality of a stimulus or system. It is the arithmetic mean over all individual "values on a predefined scale that a subject assigns
Mean_opinion_score
Statistical amount
most common weighted average is the weighted arithmetic mean, which is similar to an ordinary arithmetic mean except some data points contribute more than
Weighted_average
geometric–arithmetic mean, A(x, y) is the arithmetic mean. Arithmetic–geometric mean Arithmetic–harmonic mean Mean Weisstein, Eric W. "Harmonic-Geometric Mean"
Geometric–harmonic_mean
Matrix of values of explanatory variables
of the i th person to the j th question. The design matrix for an arithmetic mean is a column vector of ones. This section gives an example of simple
Design_matrix
Generalization in statistics mathematics
statistics, the weighted geometric mean is a generalization of the geometric mean using the weighted arithmetic mean. Given a sample x = ( x 1 , x 2 …
Weighted_geometric_mean
Formula for the average value of a function over its domain
The above generalizes the arithmetic mean to functions. On the other hand, it is also possible to generalize the geometric mean to functions by: exp (
Mean_of_a_function
Pattern-recognition performance metrics
Accuracy is a weighted arithmetic mean of Precision and Inverse Precision (weighted by Bias) as well as a weighted arithmetic mean of Recall and Inverse
Precision_and_recall
Agglomerative hierarchical clustering method
UPGMA (unweighted pair group method with arithmetic mean) is a simple agglomerative (bottom-up) hierarchical clustering method. It also has a weighted
UPGMA
Middle quantile of a data set or probability distribution
than the arithmetic mean of 4, which is larger than all but one of the values. However, the widely cited empirical relationship that the mean is shifted
Median
Measure of prediction accuracy of a forecast
models. It is a variant of MAPE in which the mean absolute percent errors is treated as a weighted arithmetic mean. Most commonly the absolute percent errors
Mean absolute percentage error
Mean_absolute_percentage_error
Mathematic formula for deriving a mean
} The Lehmer mean is an alternative to power means for interpolating between minimum and maximum via arithmetic mean and harmonic mean. The derivative
Lehmer_mean
forestry, quadratic mean diameter or QMD is a measure of central tendency which is considered more appropriate than arithmetic mean for characterizing
Quadratic_mean_diameter
Historical scientific theory
number 7.5 – is equal to 50. This number is, however, precisely the arithmetic mean of that which denotes the stoichiometric value of calcium oxide (=
Döbereiner's_triads
Sampling from a population which can be partitioned into subpopulations
reducing sampling error. It can produce a weighted mean that has less variability than the arithmetic mean of a simple random sample of the population. In
Stratified_sampling
Arithmetic mean of the maximum and the minimum
mid-extreme is a measure of central tendency of a sample defined as the arithmetic mean of the maximum and minimum values of the data set: M = max x + min
Mid-range
Decrease in value at a rate proportional to the current value
time and the removal of that element from the assembly, the mean lifetime is the arithmetic mean of the individual lifetimes. Starting from the population
Exponential_decay
How many different types are in a dataset
harmonic mean, q = 1 to the weighted geometric mean, and q = 2 to the weighted arithmetic mean. As q approaches infinity, the weighted generalized mean with
Diversity_index
Probability distribution
{\displaystyle \textstyle {\hat {\mu }}} is called the sample mean, since it is the arithmetic mean of all observations. The statistic x ¯ {\displaystyle \textstyle
Normal_distribution
Method of calculation of arithmetic mean
In statistics, the assumed mean is a method for calculating the arithmetic mean and standard deviation of a data set. It simplifies calculating accurate
Assumed_mean
Approximation method in statistics
simplest assumptions he could make, and he had hoped to obtain the arithmetic mean as the best estimate. Instead, his estimator was the posterior median
Least_squares
Average of squared values of a sample
In mathematics and its applications, the mean square is normally defined as the arithmetic mean of the squares of a set of numbers or of a random variable
Mean_square
Fundamental theorem in probability theory and statistics
not depend on the values of the other observations, and the average (arithmetic mean) of the observed values is computed. If this procedure is performed
Central_limit_theorem
Measures of observational error
related measure: trueness, "the closeness of agreement between the arithmetic mean of a large number of test results and the true or accepted reference
Accuracy_and_precision
Infinite series that is not convergent
Cesàro summation is an averaging method, in that it relies on the arithmetic mean of the sequence of partial sums. Other methods involve analytic continuations
Divergent_series
Range of usable frequencies
{H} }f_{\mathrm {L} }}}}\,.} While the geometric mean is more rarely used than the arithmetic mean (and the latter can be assumed if not stated explicitly)
Bandwidth_(signal_processing)
Type of statistics
location, or central tendency, such as the arithmetic mean a measure of statistical dispersion like the standard mean absolute deviation a measure of the shape
Summary_statistics
Statistical accuracy measure
outliers than the arithmetic mean. Relative change and difference Mean absolute error Mean absolute percentage error Mean squared error Root mean squared error
Symmetric mean absolute percentage error
Symmetric_mean_absolute_percentage_error
Mathematical inequality
inequality of arithmetic and geometric means. For any real vector a = ( a 1 , … , a n ) {\displaystyle a=(a_{1},\dots ,a_{n})} define the "a-mean" [a] of positive
Muirhead's_inequality
Measure of variation in statistics
measure of the amount of variation of the values of a variable about its (arithmetic) average. A low standard deviation indicates that the values of a set
Standard_deviation
Sum of an (infinite) geometric progression
geometric mean of the term before it and the term after it, in the same way that each term of an arithmetic series is the arithmetic mean of its neighbors
Geometric_series
Topics referred to by the same term
X-bar may refer to: X-bar theory, a component of linguistic theory Arithmetic mean, a commonly used type of average An X-bar, a rollover protection structure
X_bar
Elevation extremes of United States by state, district, and territory
minimum elevation of the area (low point); The arithmetic mean elevation of the area (statistical mean elevation); The median elevation of the area (statistical
List of U.S. states and territories by elevation
List_of_U.S._states_and_territories_by_elevation
Probability distribution
{1}{2}}n^{2}\sigma ^{2}}.} Specifically, the arithmetic mean, expected square, arithmetic variance, and arithmetic standard deviation of a log-normally distributed
Log-normal_distribution
Mathematical inequality
Fan inequality refers to an inequality involving the geometric mean and arithmetic mean of two sets of real numbers within the unit interval. The result
Ky_Fan_inequality
Average blood pressure in an individual during a single cardiac cycle
rates M A P {\displaystyle MAP} is more closely approximated by the arithmetic mean of systolic and diastolic pressures because of the change in shape
Mean_arterial_pressure
Average value of a random variable
rolls the die n {\displaystyle n} times and computes the average (arithmetic mean) of the results, then as n {\displaystyle n} grows, the average will
Expected_value
Measure used in digital signal processing to characterize an audio spectrum
flatness is calculated by dividing the geometric mean of the power spectrum by the arithmetic mean of the power spectrum, i.e.: F l a t n e s s = ∏ n
Spectral_flatness
with the arithmetic mean of these indicators was added to the tables. By default, the table is sorted by 2022/2024 period, the arithmetic mean. Data source:
List of German states by life expectancy
List_of_German_states_by_life_expectancy
Formula for evaluation of limits of some real-valued sequences
The Stolz–Cesàro theorem can be viewed as a generalization of the Cesàro mean, but also as a l'Hôpital's rule for sequences. Let ( a n ) n ≥ 1 {\displaystyle
Stolz–Cesàro_theorem
Mathematical finance term
effect of the difference between ensemble and time.” Annual growth % Arithmetic mean Compound interest Ecological fallacy (Averages do not predict individual
Volatility_tax
Sequence of equally spaced numbers
An arithmetic progression, arithmetic sequence or linear sequence is a sequence of numbers such that the difference from any succeeding term to its preceding
Arithmetic_progression
Statistical phenomenon and paradox
5)\end{array}}\right\}} If 5 is moved from S to R, then the arithmetic mean of R increases to 3, and the arithmetic mean of S increases to 7.5, even though the total
Will_Rogers_phenomenon
Probability distribution
used. Another simple method is to consider a complex-valued Quasi-arithmetic mean of sample. Let θ n = f − 1 ( 1 n ∑ i = 1 n f ( x i ) ) , {\displaystyle
Cauchy_distribution
Mathematical approximation
\alpha \to \infty } S 0 {\displaystyle {\mathcal {S}}_{0}} is the arithmetic mean of its inputs S α → min {\displaystyle {\mathcal {S}}_{\alpha }\to
Smooth_maximum
Algebra theorem about convex functions
+x_{n}}{n}}} denote their arithmetic mean. Then (x1, …, xn) majorizes the n-tuple (a, a, …, a), since the arithmetic mean of the i largest numbers of
Karamata's_inequality
Statistical measure
is the geometric mean. For such data, it may be preferred to the more usual standard deviation. Note that unlike the usual arithmetic standard deviation
Geometric_standard_deviation
Computer arithmetic error
In computer programming, an integer overflow occurs when an arithmetic operation on integers attempts to create a numeric value that is outside of the
Integer_overflow
minimum elevation of the area (low point); The arithmetic mean elevation of the area (statistical mean elevation); The median elevation of the area (statistical
List of Indian states and union territories by elevation
List_of_Indian_states_and_union_territories_by_elevation
Statistical measure of a test's accuracy
averaging-formulas have been used: the F1 score of (arithmetic) class-wise precision and recall means or the arithmetic mean of class-wise F1 scores, where the latter
F-score
Natural number
itself. As an integer for which the arithmetic mean average of its positive divisors is also an integer, 69 is an arithmetic number. 69 is a congruent number—a
69_(number)
Channel between upper and lower cutoff frequencies of a band system
cutoff frequencies. It is usually defined as either the arithmetic mean or the geometric mean of the lower cutoff frequency and the upper cutoff frequency
Center_frequency
Mathematical sequence of numbers
sums of terms of a finite arithmetic sequence: the sum of an arithmetic sequence is the number of terms times the arithmetic mean of the first and last individual
Geometric_progression
Set of mathematical inequalities
ai are equal. It can be seen that S1 is the arithmetic mean, and Sn is the n-th power of the geometric mean. Maclaurin's inequality Newton, Isaac (1707)
Newton's_inequalities
Test statistic
a univariate normal distribution in t (for the arithmetic mean age) or log(t) (for the geometric mean age) space, or if the compositional data fit a bivariate
Reduced_chi-squared_statistic
Acoustical parameter
highest sensitivity. The Speech Interference Level is calculated as the arithmetic mean of unweighted sound pressure levels in three or four octave bands in
Speech_interference_level
Natural number
prime factors (14, 15). These two numbers are the only numbers whose arithmetic mean of divisors is the first perfect number and unitary perfect number
29_(number)
Comparisons in quantitative sciences
addressed by appropriately extending the indicator. For example, for arithmetic mean this formula may be used: d r ( x , y ) = | x − y | ( | x | + | y |
Relative_change
Type of data visualization for geographic regions
at the arithmetic mean of the data and establishes a break at each multiple of a constant number of standard deviations above and below the mean. Quantiles
Choropleth_map
Statistical measure of how far values spread from their average
the sample, A {\displaystyle A} is the arithmetic mean, H {\displaystyle H} is the harmonic mean of the sample and σ y 2 {\displaystyle \sigma
Variance
Loss function used in robust regression
{\displaystyle L(a)=|a|} . The squared loss function results in an arithmetic mean-unbiased estimator, and the absolute-value loss function results in
Huber_loss
Geometric progression ratio that provides a constant rate of return over the time period
monthly time intervals. Annual growth % Arithmetic mean Average annual return Continuous compounding Geometric mean Exponential growth Internal Rate of Return
Compound_annual_growth_rate
Distinction between nominal, ordinal, interval and ratio variables
the geometric mean and the harmonic mean are allowed to measure the central tendency, in addition to the mode, median, and arithmetic mean. The studentized
Level_of_measurement
Natural number
Its arithmetic mean of its six divisors is twenty-eight, where (6, 28) represent the first two perfect numbers. It is the sixtieth arithmetic number
92_(number)
Least squares approximation of linear functions to data
both linear and unbiased. For example, it is easy to show that the arithmetic mean of a set of measurements of a quantity is the least-squares estimator
Linear_least_squares
Natural number
1+2+3+5+7+11+13+17=59.} 177 is also an arithmetic number, whose σ 0 {\displaystyle \sigma _{0}} holds an integer arithmetic mean of 60 {\displaystyle 60} — it
177_(number)
Number of arguments required by a function
{\sqrt[{n}]{a_{1}a_{2}\cdots a_{n}}}.} Note that a logarithm of the geometric mean is the arithmetic mean of the logarithms of its n arguments From a mathematical point
Arity
statistics maximum likelihood estimation mean 1. The expected value of a random variable. 2. The arithmetic mean, i.e. the mathematical average of a set
Glossary of probability and statistics
Glossary_of_probability_and_statistics
Type of atomic measurement
sample, the relative atomic mass of a given element is the weighted arithmetic mean of the masses of the individual atoms (including all its isotopes)
Relative_atomic_mass
Tendency of an atom to attract a shared pair of electrons
i.e. polar character of the bond. The geometric mean is approximately equal to the arithmetic mean—which is applied in the first formula above—when the
Electronegativity
Means of ranking multinational corporations
is employed by economists and politicians. It is calculated as the arithmetic mean of the following three ratios (where "foreign" means outside of the
Transnationality_Index
Biological theorem
measured using the geometric mean, which is multiplicative instead of additive like the arithmetic mean. The geometric mean is highly sensitive to small
Bet_hedging_(biology)
following outline is provided as an overview of and topical guide to arithmetic: Arithmetic is an elementary branch of mathematics that deals with numerical
Outline_of_arithmetic
Method of interpolation
all random variables have the same mean), then one is assuming that the mean can be estimated by the arithmetic mean of sampled values. The hypothesis
Kriging
Type of prime number
equal-sized prime gaps above and below it, so that it is equal to the arithmetic mean of the nearest primes above and below. Algebraically, the n {\displaystyle
Balanced_prime
ARITHMETIC MEAN
ARITHMETIC MEAN
Surname or Lastname
English
English : from the Middle English vernacular form, Maudeleyn, of the New Testament Greek personal name Magdalēnē. This is a byname, meaning ‘woman from Magdala’ (a village on the Sea of Galilee, deriving its name from Hebrew migdal ‘tower’), denoting the woman cured of evil spirits by Jesus (Luke 8:2), who later became a faithful follower. In Christian folk belief she was generally identified with the repentant sinner who washed Christ’s feet with her tears in Luke 7; hence the name came to be used as a byname for a prostitute, also a tearful woman. The popularity of the personal name increased with the supposed discovery of her relics in the 13th century.
Surname or Lastname
English and Scottish
English and Scottish : status name or occupational name from Middle English, Old French maresc(h)al ‘marshal’. The term is of Germanic origin (compare Old High German marah ‘horse’, ‘mare’ + scalc ‘servant’). Originally it denoted a man who looked after horses, but by the heyday of medieval surname formation it denoted on the one hand one of the most important servants in a great household (in the royal household a high official of state, one with military responsibilities), and on the other a humble shoeing smith or farrier. It was also an occupational name for a medieval court officer responsible for the custody of prisoners. An even wider range of meanings is found in some other languages: compare for example Polish Marszałek (see Marszalek). The surname is also borne by Jews, presumably as an Americanized form of one or more like-sounding Jewish surnames.As the fourth chief justice of the U.S., John Marshall (1755–1835) was the principal architect in consolidating and defining the powers of the Supreme Court. He was a descendant of John Marshall of Ireland, who settled in Culpeper Co., VA, sometime before 1655.
Surname or Lastname
English, French, Danish, Dutch, and German
English, French, Danish, Dutch, and German : from a short form of the personal name Matthias (see Matthew) or any of its many cognates, for example Norman French Maheu.English, French, Dutch, and German : from a nickname or personal name taken from the month of May (Middle English, Old French mai, Middle High German meie, from Latin Maius (mensis), from Maia, a minor Roman goddess of fertility). This name was sometimes bestowed on someone born or baptized in the month of May; it was also used to refer to someone of a sunny disposition, or who had some anecdotal connection with the month of May, such as owing a feudal obligation then.English : nickname from Middle English may ‘young man or woman’.Irish (Connacht and Midlands) : when not of English origin (see 1–3 above), this is an Anglicized form of Gaelic Ó Miadhaigh ‘descendant of Miadhach’, a personal name or byname meaning ‘honorable’, ‘proud’.French : habitational name from any of various places called May or Le May.Jewish (Ashkenazic) : habitational name from Mayen, a place in western Germany.Americanized spelling of cognates of 1 in various European languages, for example Swedish Ma(i)j.Chinese : possibly a variant of Mei 1, although this spelling occurs more often for the given name than for the surname.Cape May, at the mouth of Delaware Bay, is named after the Dutch explorer Cornelius Jacobsen May.
Surname or Lastname
English
English : from the Middle English personal name Merewine (Old English Maerwin, from mær ‘fame’ + win ‘friend’).English : from the Old English personal name Merefinn, derived from Old Norse Mora-Finnr.English : from the Old English personal name Mǣrwynn, composed of the elements mǣr ‘famous’, ‘renowned’ + wynn ‘joy’.English : from the Welsh personal name Merfyn, Mervyn, composed of the Old Welsh elements mer, which probably means ‘marrow’, + myn ‘eminent’.English : Mathew Marvin was one of the founders of Hartford, CT, (coming from Cambridge, MA, with Thomas Hooker) in 1635.
Surname or Lastname
English
English : habitational name from a place in Nottinghamshire. The early forms, from Domesday Book to the early 13th century, show the first element uniformly as Mam-, and it is therefore likely that this was a British hill-name meaning ‘breast’ (compare Manchester), with the later addition of Old English feld ‘pasture’, ‘open country’ (see Field) as the second element. The surname is now widespread throughout Midland and southern England and is also common in Ireland.Irish : when not an importation of 1, this is an altered form of the Norman name Manville (see Mandeville).Americanized form of German and Jewish (Ashkenazic) Mansfeld, a habitational name for someone from a place so called in Saxony.
Surname or Lastname
English and French
English and French : from the medieval personal name Masselin. This originated as an Old French pet form of Germanic names with the first element mathal ‘speech’, ‘counsel’. However, it was later used as a pet form of Matthew. Compare Mace. A feminine form, Mazelina, was probably originally a pet form of Matilda.English and French : possibly a metonymic occupational name for a maker of wooden bowls, from Middle English, Old French maselin ‘bowl or goblet of maple wood’ (a diminutive of Old French masere ‘maple wood’, of Germanic origin). In some cases it may derive from the homonymous dialect terms maslin, one of which means ‘brass’ (Old English mæslen, mæstling), the other ‘mixed grain’ (Old French mesteillon).
Surname or Lastname
English, German, Dutch (De Mann), and Jewish (Ashkenazic)
English, German, Dutch (De Mann), and Jewish (Ashkenazic) : nickname for a fierce or strong man, or for a man contrasted with a boy, from Middle English, Middle High German, Middle Dutch man. In some cases it may have arisen as an occupational name for a servant, from the medieval use of the term to describe a person of inferior social status. The Jewish surname can be ornamental.English and German : from a Germanic personal name, found in Old English as Manna. This originated either as a byname or else as a short form of a compound name containing this element, such as Hermann.Jewish (Ashkenazic) : from the Yiddish male personal name Man (cognate with 1).Indian (Panjab) : Hindu (Jat) and Sikh name of unknown meaning.
Surname or Lastname
English
English : habitational name from places in Devon and Cheshire, named in Old English as ‘common wood or clearing’, from (ge)mǣne ‘common’, ‘shared’ + lēah ‘woodland clearing’. The surname is still chiefly found in the regions around these villages.English : nickname from Middle English mannly ‘manly’, ‘virile’, ‘brave’ (Old English mannlīc, originally ‘man-like’).Irish (County Cork) : Anglicized form of Ó Máinle (and often pronounced Mauly), of unexplained origin. Compare Malley.Irish (Connacht and Donegal) : shortened Anglicized form of Gaelic Ó Maonghaile ‘descendant of Maonghal’, a personal name derived from words meaning ‘wealth’ and ‘valor’.
Surname or Lastname
English
English : variant of Mander 1.English : habitational name from Maund Bryan or Rose Maund in Herefordshire, possibly named in Old English as ‘(place at) the hollows’, from the dative plural of maga ‘stomach’ (used in a topographical sense). Mills suggests it may alternatively be a survival of an ancient Celtic term magnis, probably meaning ‘the rocks’.
Surname or Lastname
English
English : patronymic meaning ‘son of the mayor’ (see Mayer 1).Jewish (Ashkenazic) : patronymic from the personal Meyer (see Meyer 2).American form of German Meyer, with excrescent -s.Irish : variant of Meyer 3.
Surname or Lastname
Irish
Irish : shortened form of McMeans.English : habitational names from East and West Meon in Hampshire, which take their names from the Meon river. The word is Celtic but of uncertain meaning, possibly ‘swift one’.nickname from Middle English mene ‘inferior in rank’, ‘of low degree’ (from Old English gemǣne), or from Middle English mene ‘moderate in behaviour’ (from Old French mëen, mean).
Surname or Lastname
Jewish (Israeli)
Jewish (Israeli) : modern Hebrew name meaning ‘loom’.English : unexplained.
Surname or Lastname
English (Devon)
English (Devon) : habitational name from any of numerous places, for example in Derbyshire, Devon, Hampshire, Norfolk, Staffordshire, and Surrey, named in Old English as ‘mill ford’, from mylen ‘mill’ (see Mill) + ford ‘ford’.Irish : Anglicized form of Gaelic Ó Maolfhoghmhair ‘descendant of Maolgfhoghmhair’, a personal name meaning ‘chief of harvest’. The Gaelic name was first Anglicized as Mullover, which was later assimilated to Milford.
Surname or Lastname
English
English : habitational name from Merrow in Surrey, possibly so named from Old English mearg ‘marrow’ used figuratively to mean ‘fertile ground’.
Surname or Lastname
English
English : nickname for someone with a blithe or happy disposition, from Middle English merry ‘lively’, ‘cheerful’ (Old English myr(i)ge ‘pleasant’, ‘agreeable’).Irish : Anglicized form of Gaelic Ó Mearadhaigh, Ó Meardha ‘descendant of Mearadhach’, ‘descendant of Meardha’, personal names derived from an adjective meaning ‘lively’, ‘wild’, ‘wanton’.French : from a vernacular form of the personal name Médéric, derived from a Germanic personal name conposed of mecht ‘strength’, ‘might’ + rīc ‘power’; ‘ruler’.French : habitational name from Merry in Yonne or Merri in Orne, derived from the Latin personal name Matrius + the suffix -acum.
Surname or Lastname
English
English : variant spelling of Miner.German : nickname, meaning ‘small(er)’, from Latin minor ‘less’, ‘smaller’.French : nickname meaning ‘younger’, from the same word as in 2.
Surname or Lastname
English
English : name for someone who was related to an important local personality, from Middle English maugh, maw ‘relative’, especially by marriage (from Old English mÄge ‘female relative’). In the north of England this term was used more specifically to mean ‘brother-in-law’.English : topographic name from Middle English mawe ‘meadow’. Some early forms, such as Sibilla de la Mawe (Suffolk 1275), clearly indicate a topographic origin, by reason of the preposition and article.English : probably also from a Middle English personal name, Mawe, Old English MÄ“awa, perhaps originally a byname from Old English mÇ£w ‘sea mew’, ‘seagull’ (compare Mew).
Surname or Lastname
English and Dutch
English and Dutch : from Latin Marcus, the personal name of St. Mark the Evangelist, author of the second Gospel. The name was borne also by a number of other early Christian saints. Marcus was an old Roman name, of uncertain (possibly non-Italic) etymology; it may have some connection with the name of the war god Mars. Compare Martin. The personal name was not as popular in England in the Middle Ages as it was on the Continent, especially in Italy, where the evangelist became the patron of Venice and the Venetian Republic, and was allegedly buried at Aquileia. As an American family name, this has absorbed cognate and similar names from other European languages, including Greek Markos and Slavic Marek.English, German, and Dutch (van der Mark) : topographic name for someone who lived on a boundary between two districts, from Middle English merke, Middle High German marc, Middle Dutch marke, merke, all meaning ‘borderland’. The German term also denotes an area of fenced-off land (see Marker 5) and, like the English word, is embodied in various place names which have given rise to habitational names.English (of Norman origin) : habitational name from Marck, Pas-de-Calais.German : from Marko, a short form of any of the Germanic compound personal names formed with mark ‘borderland’ as the first element, for example Markwardt.Americanization or shortened form of any of several like-sounding Jewish or Slavic surnames (see for example Markow, Markowitz, Markovich).Irish (northeastern Ulster) : probably a short form of Markey (when not of English origin).
Surname or Lastname
English
English : of uncertain origin; possibly from a reduced form of the personal name Dominick.Chinese : from the name of Meng Mingshi, a senior minister of the state of Qin in the Spring and Autumn period (722–481 bc). His descendants adopted the first character of his given name, which means ‘bright’, as their surname.
Surname or Lastname
English
English : occupational name for a moneyer, Old English myntere, an agent derivative of mynet ‘coin’, from Late Latin moneta ‘money’, originally an epithet of the goddess Juno (meaning ‘counselor’, from monere ‘advise’), at whose temple in Rome the coins were struck. The English term was used at an early date to denote a workman who stamped the coins; later it came to denote the supervisors of the mint, who were wealthy and socially elevated members of the merchant class, and who were made responsible for the quality of the coinage by having their names placed on the coins.
ARITHMETIC MEAN
ARITHMETIC MEAN
Female
English
Variant spelling of English Melanie, MELANY means "black, dark."
Girl/Female
Tamil
Nature, Behavior
Male
Gypsy/Romani
 Romani form of Greek Stephanos, STEFAN means "crown." Compare with other forms of Stefan.
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Sindhi, Tamil, Telugu
Lakshmi; Lotus
Boy/Male
Hindu
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Sindhi, Tamil, Telugu
King of Gems
Boy/Male
Muslim
Respect, Right
Girl/Female
Australian, Gujarati, Hindu, Indian
Name of a Month
Female
English
Variant spelling of English Eloise, ELOUISE means "hale-wide; very healthy and sound."Â
Female
Finnish
Finnish form of Scandinavian Vendla, VENLA means "a Wend; a wanderer," a term used to refer to migrant Slavs in the sixth century.Â
ARITHMETIC MEAN
ARITHMETIC MEAN
ARITHMETIC MEAN
ARITHMETIC MEAN
ARITHMETIC MEAN
n.
Arithmetic.
v. i.
To perform the arithmetical operation of addition; as, he adds rapidly.
v. t.
To subject to arithmetical division.
adv.
Conformably to the principles or methods of arithmetic.
n.
That part of arithmetic which treats of adding numbers.
n.
The science of numbers; the art of computation by figures.
n.
The method or art of performing arithmetical operations by means of Napier's bones. See Napier's bones.
a.
Having equal differences; as, the terms of arithmetical progression are equidifferent.
v. t.
To subtract by arithmetical operation; to deduct.
a.
Of or pertaining to arithmetic; according to the rules or method of arithmetic.
n.
The four "liberal arts," arithmetic, music, geometry, and astronomy; -- so called by the schoolmen. See Trivium.
a.
Sexagesimal, or made on the scale of 60; as, logistic, or sexagesimal, arithmetic.
n.
A book containing the principles of this science.
n.
Arithmetical subtraction.
n.
One skilled in arithmetic.
a.
Of or pertaining to a unit or units; relating to unity; as, the unitary method in arithmetic.
v. i.
To use figures in a mathematical process; to do sums in arithmetic.
adv.
The arithmetical character 0; a cipher. See Cipher.
n.
A system of arithmetic, in which numbers are expressed in a scale of 60; logistic arithmetic.
a.
Having an assignable arithmetical or numerical value or meaning; not imaginary.