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Mass per unit volume
Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ρ (the
Density
Relative importance of certain frequencies in a composite signal
is finite, one may compute the energy spectral density. More commonly used is the power spectral density (PSD, or simply power spectrum), which applies
Spectral_density
Energy per volume
In physics, energy density is the quotient between the amount of energy stored in a given system or contained in a given region of space and the volume
Energy_density
Measurement of population size per unit area or unit volume
plant density. Population density is population divided by total land area, sometimes including seas and oceans, as appropriate. Low densities may cause
Population_density
Mass per unit volume of granular matter
In materials science, bulk density, also called apparent density, is a material property defined as the mass of the many particles of the material divided
Bulk_density
Mass per unit volume of the Earth's atmosphere
The density of air or atmospheric density, denoted ρ, is the mass per unit volume of Earth's atmosphere at a given point and time. Air density, like air
Density_of_air
Description of continuous random distribution
In probability theory, a probability density function (PDF), density function, or simply density of an absolutely continuous random variable, is a function
Probability_density_function
Noise power per unit of bandwidth
noise spectral density (NSD), noise power density, noise power spectral density, or simply noise density (N0) is the power spectral density of noise or the
Noise_spectral_density
Mathematical tool in quantum physics
In quantum mechanics, a density matrix (or density operator) is a matrix used in calculating the probabilities of the outcomes of measurements performed
Density_matrix
following is a list of countries and dependencies ranked by population density, sorted by inhabitants per square kilometre or square mile. The list includes
List of countries and dependencies by population density
List_of_countries_and_dependencies_by_population_density
Vector field describing the density of electric dipole moments in a dielectric material
electromagnetism, polarization density (or electric polarization, or simply polarization) is the vector field that expresses the volumetric density of permanent or induced
Polarization_density
Abnormally low bone mineral density
Osteopenia, also called low bone mass or low bone density, is a condition in which bone density is low. Because their bones are weaker, people with osteopenia
Osteopenia
Screen resolution measured in pixels per length
pixels per centimetre (ppcm or pixels/cm) are measurements of the pixel density of an electronic image device, such as a computer monitor or a television
Pixel_density
One of the five major groups of lipoprotein
ULDL by the overall density naming convention), very low-density lipoprotein (VLDL), intermediate-density lipoprotein (IDL), low-density lipoprotein (LDL)
Low-density_lipoprotein
Density gradient is a spatial variation in density over a region. The term is used in the natural sciences to describe varying density of matter, but can
Density_gradient
Topics referred to by the same term
Look up density in Wiktionary, the free dictionary. Density is defined as the ratio of mass per unit volume. Density may also refer to: Area density or surface
Density_(disambiguation)
Concept in number theory
In mathematics, the Dirichlet density (or analytic density) of a set of primes, named after Peter Gustav Lejeune Dirichlet, is a measure of the size of
Dirichlet_density
Paper product's mass per unit volume
Paper density measures a paper product's mass per unit volume. The density can be calculated by dividing the grammage of paper (in grams per square metre
Paper_density
Third planet from the Sun
causing expansion of the air. This lower-density air then rises and is replaced by cooler, higher-density air. The result is atmospheric circulation
Earth
This is a list of countries ordered by physiological density. "Arable land" is defined by the UN's Food and Agriculture Organization, the source of "Arable
List of countries by arable land density
List_of_countries_by_arable_land_density
States of America by population density, population size, and land area. It also includes a sortable table of density by states, territories, divisions
List of U.S. states and territories by population density
List_of_U.S._states_and_territories_by_population_density
Computer storage measure
density: length (linear density) of track, area of the surface (areal density), or in a given volume (volumetric density). Generally, higher density is
Density_(computer_storage)
Power per volume
Power density is the amount of power (time rate of energy transfer) per unit volume. It is typically measured in watts per cubic meter (W/m³) and represents
Power_density
Concept in number theory
In number theory, natural density, also referred to as asymptotic density or arithmetic density, is a measure of how "large" a subset of the set of natural
Natural_density
Amount of charge flowing through a unit cross-sectional area per unit time
density is the electric current (or the amount of charge per unit time) that flows through a unit area of a chosen cross section. The current density
Current_density
Storage density for magnetic disks
Disk density is a capacity designation on magnetic storage, usually floppy disks. Each designation describes a set of characteristics that can affect
Disk_density
Quality control instrument
paint or lacquer, and comparing this density with the density of a standard for that paint or lacquer. If the density reading is different from the standard
Density_cup
Mass per unit area
The area density (also known as areal density, surface density, superficial density, column density, or density thickness) of a two-dimensional object
Area_density
Physical parameter of a drainage basin
Drainage density is a quantity used to describe physical parameters of a drainage basin. First described by Robert E. Horton, drainage density is defined
Drainage_density
States of matter for water as a solid
suppressing long-range density fluctuations and are, therefore, nearly hyperuniform. Classification analysis suggests that low and high density amorphous ices
Phases_of_ice
Numbers registered to a union
The union density or union membership rate conveys the number of trade union members who are employees as a percentage of the total number of employees
Union_density
Number of available physical states per energy unit
matter physics, the density of states (DOS) of a system describes the number of allowed modes or states per unit energy range. The density of states is defined
Density_of_states
One of the five major groups of lipoprotein
"intermediate-density" refers to a density between that of high-density and low-density lipoproteins, it in fact refers to a density between that of low-density and
Intermediate-density lipoprotein
Intermediate-density_lipoprotein
Degree of concentration of countable objects
number density, two-dimensional areal number density, or one-dimensional linear number density. Population density is an example of areal number density. The
Number_density
Ratio of two densities
Relative density, also called specific gravity, is a dimensionless quantity defined as the ratio of the density (mass divided by volume) of a substance
Relative_density
Amount of bone mineral in bone tissue
Bone density, or bone mineral density (BMD), is the amount of bone mineral in bone tissue, measured as mass of mineral per volume of bone (relating to
Bone_density
Engineered wood product
Medium-density fibreboard (MDF) is an engineered wood product made by breaking down hardwood or softwood residuals into wood fibre, often in a defibrator
Medium-density_fibreboard
Class of polyethylenes
High-density polyethylene (HDPE) is one of several varieties of polyethylene (PE). PE's, the dominant synthetic polymer, are produced in many forms that
High-density_polyethylene
Topics referred to by the same term
Critical density may refer to: Critical density (cosmology), the matter density of a spatially flat Universe Critical density (thermodynamics), the density of
Critical_density
Frequency of a keyword in a web page
Keyword density is the percentage of times a keyword or phrase appears on a web page compared to the total number of words on the page. In the context
Keyword_density
Number of people inhabiting a given urbanized area
density of urban areas: Population density - the number of human persons per unit area Median density - a density metric which measures the density at
Urban_density
Describes statistically the splitting of primes in a given Galois extension of Q
In mathematics, specifically in algebraic number theory, the Chebotarev density theorem, named after Nikolai Chebotarev, statistically describes the splitting
Chebotarev_density_theorem
Term in sociology
In sociology, dynamic density refers to the combination of two things: population density and the amount of social interaction within that population
Dynamic_density
Nutritional ratio
Nutrient density identifies the amount of beneficial nutrients in a food product in proportion to e.g. energy content, weight or amount of perceived detrimental
Nutrient_density
A density meter (densimeter) is a device which measures the density of an object or material. Density is usually abbreviated as either ρ {\displaystyle
Density_meter
Concept in statistics
In statistics, kernel density estimation (KDE) is the application of kernel smoothing for probability density estimation, i.e., a non-parametric method
Kernel_density_estimation
Number of stars within a unit volume
Stellar density is the average number of stars within a unit volume. It is similar to the stellar mass density, which is the total solar masses (MSun)
Stellar_density
In additive number theory, a way to measure how dense a sequence of numbers is
In additive number theory, the Schnirelmann density of a sequence of numbers is a way to measure how "dense" the sequence is. It is named after Soviet
Schnirelmann_density
Altitude relative to standard atmospheric conditions
The density altitude is the altitude relative to standard atmospheric conditions at which the air density would be equal to the indicated air density at
Density_altitude
Statistic
Telephone density or teledensity is the number of telephone connections for every hundred individuals living within an area. It varies widely across the
Telephone_density
Estimate of an unobservable underlying probability density function
In statistics, probability density estimation or simply density estimation is the construction of an estimate, based on observed data, of an unobservable
Density_estimation
One of the five major groups of lipoprotein
High-density lipoprotein (HDL) is one of the five major groups of lipoproteins. Lipoproteins are complex particles composed of multiple proteins which
High-density_lipoprotein
Probability density of electrons being somewhere
Electron density or electronic density is the measure of the probability of an electron being present at an infinitesimal element of space surrounding
Electron_density
Topics referred to by the same term
Particle density may refer to: Particle density (packed density), density of material that particles are composed of Particle density (particle count)
Particle_density
Computational quantum mechanical modelling method to investigate electronic structure
Density functional theory (DFT) is a computational quantum mechanical modeling method used in physics, chemistry and materials science to investigate
Density_functional_theory
The potential density of a fluid parcel at pressure P {\displaystyle P} is the density that the parcel would acquire if adiabatically brought to a reference
Potential_density
Star at the centre of the Solar System
in hydrostatic equilibrium, its core will undergo a marked increase in density and temperature which will cause its outer layers to expand, eventually
Sun
Measure of economic activity per a given unit of area
GDP density is a measure of economic activity by area. It is expressed as gross domestic product per square kilometer and can be calculated by multiplying
GDP_density
mechanics, the force density is the negative gradient of pressure. It has the physical dimensions of force per unit volume. Force density is a vector field
Force_density
Power per area
In physics and engineering, surface power density is power per unit area. The intensity of electromagnetic radiation can be expressed in W/m2. An example
Surface_power_density
Theory of structure of spiral galaxies
Density wave theory or the Lin–Shu density wave theory is a theory proposed by C.C. Lin and Frank Shu in the mid-1960s to explain the spiral arm structure
Density_wave_theory
Electric charge per unit length, area or volume
electromagnetism, charge density is the amount of electric charge per unit length, surface area, or volume. Volume charge density (symbolized by the Greek
Charge_density
Section of a certain line bundle
geometry, a density is a spatially varying quantity on a differentiable manifold that can be integrated in an intrinsic manner. Abstractly, a density is a section
Density_on_a_manifold
Earth, a natural material
have a dry bulk density (density of soil taking into account voids when dry) between 1.1 and 1.6 g/cm3, though the soil particle density is much higher
Soil
Mathematical concept applicable to physics
corresponding flux density is a flux according to the transport definition. Given a current such as electric current—charge per time, current density would also
Flux
Probability distribution
for a real-valued random variable. The general form of its probability density function is f ( x ) = 1 2 π σ 2 exp ( − ( x − μ ) 2 2 σ 2 ) . {\displaystyle
Normal_distribution
Chemical compound
Low-density polyethylene (LDPE) is one of several varieties of polyethylene (PE). PE's, the dominant synthetic polymer, are produced in many forms that
Low-density_polyethylene
Mass per unit length
Linear mass density or simply linear density is defined in the International System of Quantities (ISQ) as the quotient of mass and length. It is also
Linear_density
This is a list of cities worldwide by population density. The population, population density and land area for the cities listed are based on the entire
List of cities proper by population density
List_of_cities_proper_by_population_density
Spin-density wave (SDW) and charge-density wave (CDW) are names for two similar low-energy ordered states of solids. Both these states occur at low temperature
Spin_density_wave
Statistical value in military science
A troop density (Russian: Плотность войск) also known as the dispersion factor in military science is a statistical value assigned by commanders during
Troop_density
is a list of incorporated places in the United States with a population density of over 10,000 people per square mile. As defined by the United States
List of United States cities by population density
List_of_United_States_cities_by_population_density
Density of a vapor in relation to that of hydrogen
Vapour density is the density of a vapour in relation to that of hydrogen. It may be defined as mass of a certain volume of a substance divided by mass
Vapour_density
Density of the nucleus of an atom
Nuclear density is the density of the nucleons (neutrons and protons) in the nucleus. For heavy nuclei, it is close to the nuclear saturation density n 0
Nuclear_density
Cost savings resulting from.spatial proximity of suppliers or providers
economies of density are cost savings resulting from spatial proximity of suppliers or providers. Typically higher population densities allow synergies
Economies_of_density
Concept in population ecology
In population ecology, density dependence occurs when population growth rates are regulated by the population density. The concept affects macroparasite
Density_dependence
One of the five major groups of lipoprotein
Very-low-density lipoprotein (VLDL), density relative to extracellular water, is a type of lipoprotein made by the liver. VLDL is one of the five major
Very_low-density_lipoprotein
In measure theory, a field of mathematics, the Hausdorff density measures how concentrated a Radon measure is at some point. Let μ {\displaystyle \mu
Hausdorff_density
Complexity of communication
Lexical density is a concept in computational linguistics that measures the structure and complexity of human communication in a language. Lexical density estimates
Lexical_density
Density contrast is a parameter used in galaxy formation to indicate where there are local enhancements in matter density. Δ = ∂ ϱ ϱ {\displaystyle \Delta
Density_contrast
Everything in space and time
energy, the density of which does not change over time. After about 9.8 billion years, the universe had expanded sufficiently so that the density of matter
Universe
In mathematics, the density topology on the real numbers is a topology on the real line that is different (strictly finer), but in some ways analogous
Density_topology
crystallography, a difference density map or Fo–Fc map shows the spatial distribution of the difference between the measured electron density of the crystal and
Difference_density_map
Electromagnetic energy transfer rate
In spectroscopy, spectral flux density is the quantity that describes the rate at which energy is transferred by electromagnetic radiation through a real
Spectral_flux_density
Void between celestial bodies
and between celestial bodies. It contains ultra-low levels of particle densities, constituting a near-perfect vacuum of predominantly hydrogen and helium
Outer_space
Buoyant density centrifugation (also isopycnic centrifugation or equilibrium density-gradient centrifugation) uses the concept of buoyancy to separate
Buoyant density centrifugation
Buoyant_density_centrifugation
Threshold host density (NT), in the context of wildlife disease ecology, refers to the concentration of a population of a particular organism as it relates
Threshold_host_density
Literary concept proposed by Thomas G. Pavel
Referential density is a concept of ficto-narrative theory put forward by Thomas G. Pavel in his 1986 book, Fictional Worlds. The concept refers to the
Referential_density
Performance indicator for retail sales
Sales density is a measure of performance in retailing. It is the revenue generated for a given area of sales space, and is presented as a monetary value
Sales_density
Device in optics that reduces light intensity
In photography and optics, a neutral-density filter, or ND filter, is a filter that reduces or modifies the intensity of all wavelengths, or colors, of
Neutral-density_filter
Theorem in analysis
Lebesgue's density theorem states that for any Lebesgue measurable set A ⊆ R n {\displaystyle A\subseteq \mathbb {R} ^{n}} , the "density" of A {\displaystyle
Lebesgue's_density_theorem
Linear error correcting code
Low-density parity-check (LDPC) codes, also known as Gallager codes, are a class of error-correction codes first proposed in 1960. Together with the closely
Low-density_parity-check_code
Most common thermoplastic polymer
polymers of ethylene, with various values of n. It can be low-density or high-density and many variations thereof. Its properties can be modified further
Polyethylene
The etch pit density (EPD) is a measure for the quality of semiconductor wafers. An etch solution is applied on the surface of the wafer where the etch
Etch_pit_density
Form of modulation
Pulse-density modulation (PDM) is a form of modulation used to represent an analog signal with a binary signal. In a PDM signal, specific amplitude values
Pulse-density_modulation
Skeletal disorder
rate of resorption exceeds that of bone formation, causing bones to lose density and become more susceptible to fractures. The word "osteoporosis" is from
Osteoporosis
Fraction of graph maps that are homomorphisms
In the mathematical field of extremal graph theory, homomorphism density with respect to a graph H {\displaystyle H} is a parameter t ( H , − ) {\displaystyle
Homomorphism_density
Number of windings of a polytope around its center of symmetry
In geometry, the density of a star polyhedron is a generalization of the concept of winding number from two dimensions to higher dimensions, representing
Density_(polytope)
Voronoi deformation density (VDD) is a method employed in computational chemistry to compute the atomic charge distribution of a molecule in order to
Voronoi_deformation_density
In the theory of von Neumann algebras, the Kaplansky density theorem, due to Irving Kaplansky, is a fundamental approximation theorem. The importance
Kaplansky_density_theorem
DENSITY
DENSITY
DENSITY
DENSITY
Girl/Female
Indian
Gift of Allah swt, Pearl
Male
English
Variant spelling of English unisex Skylar, SKYLER means "protection, shelter."Â
Female
Russian
Variant spelling of Russian Klavdiya, KLAVDIA means "lame."
Girl/Female
Tamil
Sweet friend
Surname or Lastname
German
German : topographic name for someone who lived by a meadow, from Matte 1 + -er, suffix denoting an inhabitant.English and Dutch : occupational name for a maker of mats, from an agent derivative of Middle English matte, Middle Dutch mat ‘mat’.
Girl/Female
Tamil
A new beginning
Girl/Female
Bengali, Christian, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Telugu
Manuscripts of God
Boy/Male
Hindu, Indian, Kannada, Sanskrit, Tamil, Telugu
King
Boy/Male
Hindu
Smart
Boy/Male
Indian, Punjabi, Sikh
Attractive Lamp
DENSITY
DENSITY
DENSITY
DENSITY
DENSITY
n.
The unit of weight in the metric system. It was intended to be exactly, and is very nearly, equivalent to the weight in a vacuum of one cubic centimeter of pure water at its maximum density. It is equal to 15.432 grains. See Grain, n., 4.
n.
The quality or state of being rare; rareness; thinness; as, the rarity (contrasted with the density) of gases.
n.
The quality or state of being porous; -- opposed to density.
a.
Having equal density, as different regions of a medium; passing through points at which the density is equal; as, an isopycnic line or surface.
n.
The ratio of mass, or quantity of matter, to bulk or volume, esp. as compared with the mass and volume of a portion of some substance used as a standard.
n.
To break the natural course of, as rays of light orr heat, when passing from one transparent medium to another of different density; to cause to deviate from a direct course by an action distinct from reflection; as, a dense medium refrcts the rays of light as they pass into it from a rare medium.
n.
A line or surface passing through those points in a medium, at which the density is the same.
n.
A form of hydrometer, specially graduated, for finding the density of milk, and thus discovering whether it has been mixed with water or some of the cream has been removed.
n.
A measure of weight, being a thousand grams, equal to 2.2046 pounds avoirdupois (15,432.34 grains). It is equal to the weight of a cubic decimeter of distilled water at the temperature of maximum density, or 39¡ Fahrenheit.
n.
The quality of being dense, close, or thick; compactness; -- opposed to rarity.
n.
The change in the direction of ray of light, heat, or the like, when it enters obliquely a medium of a different density from that through which it has previously moved.
n.
The quality of being dense; density.
n.
The science of the determination of the density of vapors and gases.
n.
An instrument for determining the strength or purity of wine by measuring its density.
n.
The state or quality of being solid; density; consistency, -- opposed to fluidity; compactness; fullness of matter, -- opposed to openness or hollowness; strength; soundness, -- opposed to weakness or instability; the primary quality or affection of matter by which its particles exclude or resist all others; hardness; massiveness.
n.
The curve formed by a rope or chain of uniform density and perfect flexibility, hanging freely between two points of suspension, not in the same vertical line.
n.
Depth of shade.
n.
An instrument for ascertaining the specific gravity or density of a substance.