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Motor response evoked by electrical stimulation of a nerve
In neuroscience, an F wave is one of several motor responses which may follow the direct motor response (M) evoked by electrical stimulation of peripheral
F_wave
Dynamic disturbance in a medium or field
Temperature waves or chemical reaction waves demonstrate that waves need not be a material displacement. Mathematically, a wave is described by a function F ( x
Wave
Prolonged period of excessively hot weather
for a 25 °C (77.0 °F) temperature. Sweden defines a heat wave as at least five days in a row with a daily high exceeding 25 °C (77.0 °F). In Greece, the
Heat_wave
heat wave that would not be seen again until the heat waves of the 21st century. The maximum recorded temperature of the heat wave, 35.9 °C (96.6 °F) at
List_of_heat_waves
Weather phenomenon
dropping below 20 °F (−7 °C). A cold wave of sufficient magnitude and duration may be classified as a cold air outbreak (CAO). A cold wave can cause death
Cold_wave
Differential equation for the description of waves or standing wave
The wave equation is a second-order linear partial differential equation for the description of waves or standing wave fields such as mechanical waves (e
Wave_equation
late July, a second heat wave occurred, during which all-time records were broken by 3 °C (5.4 °F) in Belgium, by 2.1 °C (3.8 °F) in Germany and the Netherlands
2019_European_heatwaves
Wave shaped like the sine function
the sound wave described by a sine function with f = 220 oscillations per second. Problems playing this file? See media help. A sine wave represents
Sine_wave
Muscle response
response is usually a clear wave, called H-wave, 28-35 ms after the stimulus, not to be confused with an F-wave. An M-wave, an early response, occurs 3-6
H-reflex
Major heat wave in Europe
European heat wave saw the hottest summer recorded in Europe since at least 1540. Spain, France, and Italy were hit especially hard. The heat wave led to health
2003_European_heatwave
Diagnostic test for nerve function
recording site by the latency: Conduction velocity = Distance/Latency. F-wave study uses supramaximal stimulation of a motor nerve and recording of action
Nerve_conduction_study
Type of wave propagating in 3 dimensions
complex exponential plane wave. When the values of F {\displaystyle F} are vectors, the wave is said to be a longitudinal wave if the vectors are always
Plane_wave
2021 heat wave in the Pacific Northwest and Western Canada
America heat wave was an extreme heat wave that affected much of Western North America from late June through early July 2021. The heat wave affected Northern
2021 Western North America heat wave
2021_Western_North_America_heat_wave
Non-sinusoidal waveform
Sawtooth wave 5 seconds of 220 Hz sawtooth wave Problems playing this file? See media help. The sawtooth wave (or saw wave) is a kind of non-sinusoidal
Sawtooth_wave
Quantum mechanical waves describing matter
Matter waves are a central part of the theory of quantum mechanics, being half of wave–particle duality. At all scales where measurements have been practical
Matter_wave
Wave that remains in a constant position
In physics, a standing wave, also known as a stationary wave, is a wave that oscillates in time but whose peak amplitude profile does not move in space
Standing_wave
5-day heat wave leading to over 700 heat-related deaths
in the upper 70s and lower 80s °F (about 26 °C). The humidity made a large difference for the heat in this heat wave when compared to the majority of
1995_Chicago_heat_wave
Physical model of propagating energy
electromagnetic radiation (EMR) or an electromagnetic wave (EMW) is a self-propagating wave of the electromagnetic field that carries momentum and radiant
Electromagnetic_radiation
Type of wave
the wave takes to travel the distance x . {\displaystyle \ x~.} The ordinary frequency ( f {\displaystyle \ f\ } ) of the wave is given by f = ω
Longitudinal_wave
Woodblock print by Hokusai (1831)
The Great Wave off Kanagawa (Japanese: 神奈川沖浪裏, Hepburn: Kanagawa-oki Nami Ura; lit. 'Under the Wave off Kanagawa') is a woodblock print by the Japanese
The_Great_Wave_off_Kanagawa
Concept in quantum mechanics
Wave–particle duality is the concept in quantum mechanics that fundamental entities of the universe, like photons and electrons, exhibit particle or wave
Wave–particle_duality
Extreme weather event
The 1936 North American heat wave was one of the most severe heat waves in the modern history of North America. It took place in the middle of the Great
1936_North_American_heat_wave
Period of hot weather in 1990
merging. › During the 1990 heat wave in the United Kingdom a weather station recorded a temperature of 37.1 °C (98.8 °F) for Cheltenham, Gloucestershire
1990_United_Kingdom_heatwave
Unexpectedly large transient ocean surface wave
Rogue waves (also known as freak waves, monster waves, or killer waves) are large and unpredictable surface waves that can be extremely dangerous to ships
Rogue_wave
Measure used in radio engineering and telecommunications
component of a standing wave in a uniform transmission line consists of the forward wave (with complex amplitude V f {\displaystyle V_{f}} ) superimposed on
Standing_wave_ratio
This is a list of wave topics. Contents: Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Index_of_wave_articles
Eigenvalue problem for the Laplace operator
differential equation: ∇ 2 f = − k 2 f , {\displaystyle \nabla ^{2}f=-k^{2}f,} where ∇2 is the Laplace operator, –k2 is the eigenvalue, and f is the (eigen)function
Helmholtz_equation
Type of non-sinusoidal waveform
Square wave sound sample 5 seconds of square wave at 220 Hz Sine wave sound sample For comparison, five seconds of a 220 Hz sine wave. Problems playing
Square_wave_(waveform)
Mathematical description of quantum state
determines how wave functions evolve over time, and a wave function behaves qualitatively like other waves, such as water waves or waves on a string, because
Wave_function
Number of occurrences or cycles per unit time
frequency f of a sinusoidal wave is equal to the phase velocity v of the wave divided by the wavelength λ of the wave: f = v λ . {\displaystyle f={\frac
Frequency
Inertial wave in rotating fluids
Rossby waves, also known as planetary waves, are a type of inertial wave naturally occurring in rotating fluids. They were first identified by Sweden-born
Rossby_wave
Distance over which a wave's shape repeats
wave and f {\displaystyle f} is the wave's frequency. In a dispersive medium, the phase speed itself depends upon the frequency of the wave, making the
Wavelength
Summer heat waves
considered for merging. › The 2010 Northern Hemisphere summer heat waves included severe heat waves that impacted most of the United States, Kazakhstan, Mongolia
2010 Northern Hemisphere heat waves
2010_Northern_Hemisphere_heat_waves
Speed of sound wave through elastic medium
by a sound wave as it propagates through an elastic medium. More simply, the speed of sound is how fast vibrations travel. At 20 °C (68 °F), the speed
Speed_of_sound
Heat waves affecting Europe in 2022
heat wave the name Zoe, thereby making it the first named heat wave in the world. During July, Córdoba had an average high of 40.4 °C (104.7 °F), with
2022_European_heatwaves
Short "burst" or "envelope" of restricted wave action that travels as a unit
In physics, a wave packet (also known as a wave train or wave group) is a short burst of localized wave action that travels as a unit, outlined by an
Wave_packet
Aspect of relativity in physics
Gravitational waves are waves of spacetime curvature produced by the relative motion of gravitating masses and which propagate away at the speed of light
Gravitational_wave
Moving wave that has oscillations perpendicular to the direction of the wave
a transverse wave is a wave that oscillates perpendicularly to the direction of the wave's advance. In contrast, a longitudinal wave travels in the
Transverse_wave
Surface waves generated by wind on open water
In fluid dynamics, a wind wave, or wind-generated water wave, is a surface wave that occurs on the free surface of bodies of water as a result of the
Wind_wave
Heat wave in Europe
heat wave lasted for 17 days. July 2006 became the warmest month in Belgian history, with an all-time high mean temperature of 23.0 °C (73.4 °F). At 14:32
2006_European_heatwave
Elastic waves propagating in solid plates or spheres
Lamb waves propagate in solid plates or spheres. They are elastic waves whose particle motion lies in the plane that contains the direction of wave propagation
Lamb_waves
Type of electromagnetic radiation
frequency f {\displaystyle f} of the wave. The relation of frequency and wavelength in a radio wave traveling in vacuum or air is λ = c f , {\displaystyle
Radio_wave
Transport of energy by wind waves, and the capture of that energy to do useful work
desalination, or pumping water. A machine that exploits wave power is a wave energy converter (WEC). Waves are generated primarily by wind passing over the sea's
Wave_power
Radio transmission using wavelengths above 1000 m
In radio, longwave (also spelled long wave or long-wave and commonly abbreviated LW) is the part of the radio spectrum with wavelengths longer than what
Longwave
Type of singularity analysis
precisely in microlocal analysis, the wave front (set) WF(f) characterizes the singularities of a generalized function f, not only in space, but also with
Wave_front_set
maxima over 30 °C (86 °F) from 23 June to 8 July and for 15 consecutive days from 23 June to 7 July temperatures reached 32.2 °C (90 °F) somewhere in the United
1976_British_Isles_heatwave
Severe winter in the UK
severe cold wave at the start of December. The Central England Temperature region (CET) recorded a daily mean temperature of 0.3 °C (32.5 °F) and a daily
1981–82 United Kingdom cold wave
1981–82_United_Kingdom_cold_wave
Fundamental principle of physics
additivity F ( x 1 + x 2 ) = F ( x 1 ) + F ( x 2 ) {\displaystyle F(x_{1}+x_{2})=F(x_{1})+F(x_{2})} and homogeneity F ( a x ) = a F ( x ) {\displaystyle F(ax)=aF(x)}
Superposition_principle
Constant related to electromagnetic wave propagation in a medium
propagation the wave impedance is: Z = Z 0 1 − ( f c f ) 2 (TE modes) , {\displaystyle Z={\frac {Z_{0}}{\sqrt {1-\left({\frac {f_{c}}{f}}\right)^{2}}}}\qquad
Wave_impedance
Heat event caused by polar vortex weakening
reach temperatures 10 °C (18.0 °F) above normal in July 2024, up to a 28 °C (50.4 °F) increase above average. The heat wave was significant for occurring
2024_Antarctica_heat_wave
In Europe
temperature of 25 °C (77 °F) (compared to 24.8 °C during the 2006 European heat wave), and it reached a high of 37.5 °C (99.5 °F) on 14 July. Similarly,
1757_heatwave
Potential for two waves to interfere
expresses the potential for two waves to interfere. Two monochromatic beams from a single source always interfere. Even for wave sources that are not strictly
Coherence_(physics)
Frequency change of a wave for observer relative to its source
frequency f {\displaystyle f} and emitting frequency f 0 {\displaystyle f_{\text{0}}} of a wave propagating through a medium is given by: f = ( v m ±
Doppler_effect
Phenomenon resulting from the superposition of two waves
is the wavenumber and ω = 2 π f {\displaystyle \omega =2\pi f} is the angular frequency of the wave. Suppose a second wave of the same frequency and amplitude
Wave_interference
Weather Disaster
wave began in June when a strong high pressure ridge began to build in the central and southern United States allowing temperatures to soar to 90 °F (32 °C)
1980_United_States_heat_wave
Series of water waves
(t)soo-NAH-mee, (t)suu-; from Japanese: 津波, lit. 'harbour wave', pronounced [tsɯnami]) is a series of waves in a water body caused by the displacement of a large
Tsunami
Height that waves reach on a slope
Wave run-up is the height to which waves run up the slope of a revetment, bank or dike, regardless of whether the waves are breaking or not. Conversely
Wave_run-up
Quantum computing company
-122.9990452 D-Wave Quantum Inc. is a quantum computing company with locations in Palo Alto, California and Burnaby, British Columbia. D-Wave claims to be
D-Wave_Systems
1911 severe heat wave in the northeastern United States
wave was an 11-day severe heat wave that killed at least 380 people, though estimates have put the death toll as high as 2,000 people. The heat wave began
1911 Eastern North America heat wave
1911_Eastern_North_America_heat_wave
Wave where gravity is the main restoring force
called a wave orbit. Gravity waves on an air–sea interface of the ocean are called surface gravity waves (a type of surface wave), while gravity waves that
Gravity_wave
over 30 °C (86 °F) in some locations, as well as exceptionally low rainfall throughout the summer. In the United Kingdom, the heat wave of 1995 currently
1995_British_Isles_heatwave
Vector describing a wave; often its propagation direction
where: f {\displaystyle f} is the frequency ν ~ {\displaystyle {\tilde {\boldsymbol {\nu }}}} is the wave vector The direction in which the wave vector
Wave_vector
Periodic rectangular waveform
A pulse wave, pulse train, or rectangular wave is a sequence of discrete pulses occurring in a signal over time. Typically, these pulses are of similar
Pulse_wave
Smooth curve outlining the extremes of an oscillating signal
waves of almost the same wavelength and frequency: F ( x , t ) = sin [ 2 π ( x λ − Δ λ − ( f + Δ f ) t ) ] + sin [ 2 π ( x λ + Δ λ − ( f − Δ f )
Envelope_(waves)
List of heat waves
(104 °F) in parts of Morocco and Algeria. Morocco, Algeria and Tunisia still reached temperatures of up to 47 °C (117 °F) on 13 July. Another heat wave hit
2023_heat_waves
Type of wave in the ocean or atmosphere
A Kelvin wave is a wave in the ocean, a large lake or the atmosphere that balances the Earth's Coriolis force against a topographic boundary such as a
Kelvin_wave
Period of unusually hot weather in the summer of 2018
a month. A heat wave was officially declared on 22 June, with Scotland and Northern Ireland recording temperatures above 30 °C (86 °F) for the first time
2018_British_Isles_heatwave
Series of waves generated by distant weather systems
surface gravity waves. These surface gravity waves have their origin as wind waves, but are the consequence of dispersion of wind waves from distant weather
Swell_(wave)
Ongoing heatwaves throughout the European Union and surrounding countries
when it was cooler. A yellow heat wave warning was issued in Moldova on 4 July, with temperatures reaching to 35 °C (95 °F) in the South. In the Netherlands
2026_European_heatwaves
Weather event in Greece
maximum recorded temperature was measured at 41.9 °C (107.4 °F) on July 23. The heat wave was driven by the combination of Athenian geography, atmospheric
1987_Athens_heat_wave
Type of elastic body wave
In solid mechanics, S waves, secondary waves, or shear waves (sometimes called elastic S waves) are a type of elastic wave and are one of the two main
S_wave
Traffic signal timing technique
A green wave or platoon effect occurs when a series of traffic lights (usually three or more) are coordinated to allow continuous traffic flow over several
Green_wave
American rapper and singer (born 1998)
Rodarius Marcell Green (born August 27, 1998), known professionally as Rod Wave, is an American rapper, singer, and songwriter. Signed to Alamo Records,
Rod_Wave
Severe heatwave in India and Pakistan
documented temperatures exceeding 43.0 °C (109.4 °F), with many areas classified as experiencing severe heat wave conditions according to official meteorological
2025_India–Pakistan_heat_wave
Heat waves affecting Europe in 2023
41 °C (106 °F) during the Cerberus heat wave. Temperatures stayed above 35 °C (95 °F) for more than 2 weeks. Temperatures reached 40 °C (104 °F) by 13 July
2023_European_heatwaves
Interpretation of quantum mechanics
The de Broglie–Bohm theory, also known as the pilot wave theory, Bohmian mechanics, and the causal interpretation, is an interpretation of quantum mechanics
De_Broglie–Bohm_theory
Optical polarization device
alters the polarization state of a light wave travelling through it. Two common types of waveplates are the half-wave plate, which rotates the polarization
Waveplate
Weather event in North America
reaching upwards of 131 °F (55 °C). On a national basis, the heat wave was the hottest in 75 years. Before the start of the heat wave, two derecho events took
2011_North_American_heat_wave
Low-frequency plasma wave
In plasma physics, an Alfvén wave, named after Hannes Alfvén, is a type of plasma wave in which ions oscillate in response to a restoring force provided
Alfvén_wave
Forces in naval architecture
ship or model was at its so-called Hull speed the wave pattern of the transverse waves (the waves along the hull) have a wavelength equal to the length
Ship resistance and propulsion
Ship_resistance_and_propulsion
Coffee movement emphasizing quality
Third-wave coffee is a term primarily in the United States coffee industry emphasizing higher quality, single-origin farms and light roast to bring out
Third-wave_coffee
Type of energy propagation
Acoustic waves are types of mechanical waves that propagate through matter—such as gas, liquid, and/or solids—by causing the particles of the medium to
Acoustic_wave
Heat wave affecting North America
(95 °F (35 °C)), Galveston (86 °F (30 °C)), Wichita Falls (84 °F (29 °C)), Houston (81 °F (27 °C)) and Laredo (81 °F (27 °C)), on July 20. The heat wave was
2022 North American heat waves
2022_North_American_heat_waves
Spatial frequency of a wave
wavenumber (or wave number), also known as repetency, is the spatial frequency of a wave. Ordinary wavenumber is defined as the number of wave cycles divided
Wavenumber
Heat wave in southern Pakistan
event is being considered for merging. › A severe heat wave with temperatures as high as 49 °C (120 °F) struck southern Pakistan in June 2015. It caused the
2015_Pakistan_heat_wave
Nonlinear and periodic surface wave on an inviscid fluid layer of constant mean depth
In fluid dynamics, a Stokes wave is a nonlinear and periodic surface wave on an inviscid fluid layer of constant mean depth. This type of modelling has
Stokes_wave
atrial impulse is conducted. In this circumstance, an alteration in the F-wave to QRS relationship is seen.[citation needed] Atrioventricular node Electrocardiogram
Concealed_conduction
Antenna consisting of two rod-shaped conductors
to mean a center-fed half-wave dipole. A true half-wave dipole is one half of the wavelength λ in length, where λ = c/ f in free space. Such a dipole
Dipole_antenna
is being considered for merging. › Beginning in March 2024, severe heat waves impacted Mexico, the Southern and Western United States, and Central America
2024_North_America_heat_waves
Weather event in Asia
In early June, the maximum temperature rose to about 41 °C (106 °F). The heat wave caused primary schools to be closed, and frequent power cuts, with
2023_Asia_heat_wave
This article summarizes equations in the theory of waves. A wave can be longitudinal where the oscillations are parallel (or antiparallel) to the propagation
List of equations in wave theory
List_of_equations_in_wave_theory
Weather event in North America
13 °F (−11 °C), and the cold wave would push into Florida. While record highs affected the Miami metropolitan area on January 26 with highs near 90 °F (32 °C)
January–February 2026 North American cold wave
January–February_2026_North_American_cold_wave
Weather event in North America
early season heat wave (In Canada, a heat wave is defined as three or more consecutive days with temperatures at or above 32 °C (89.6 °F)), with temperatures
2012_North_American_heat_wave
High temperatures in February, 2021, across Europe
February 20 until February 28, 2021. The onset of the short-lasting winter heat wave was caused by a jet stream of Saharan dust. Daily high temperatures for the
2021_Eurasia_winter_heat_wave
Major heat wave in April and May
2016 Indian heat wave was a major heat wave in April and May of that year. A national record high temperature of 51.0 °C (123.8 °F) was set in the town
2016_Indian_heat_wave
Physical phenomenon
physics, a surface wave is a mechanical wave that propagates along the interface between differing media. A common example is gravity waves along the surface
Surface_wave
Natural disaster
heat waves in the country, a trend partly attributed to climate change. Churu district in Rajasthan recorded a temperature of 50.5 °C (122.9 °F), the
2024_Indian_heat_wave
WWII Women's Navy Branch
United States Naval Reserve (Women's Reserve), better known as the WAVES (for Women Accepted for Volunteer Emergency Service), was the women's branch
WAVES
Numerical modelling of the sea state
fluid dynamics, wind wave modeling describes the effort to depict the sea state and predict the evolution of the energy of wind waves using numerical techniques
Wind_wave_model
Weather event in Australia
40 °C (104 °F), while Mildura, Victoria recorded an all-time record twelve consecutive days over 43 °C (109 °F). The exceptional heat wave was caused by
2009 southeastern Australia heat wave
2009_southeastern_Australia_heat_wave
F WAVE
F WAVE
Female
Hindi/Indian
(f शशी, m: शशि): Variant spelling of Hindi unisex Shashi, SASHI means "having a hare."
Boy/Male
Indian
The most kind, The clement
Girl/Female
Shakespearean
Henry VI, Part 2' Queen to King Henry VI.
Boy/Male
Latin Gaelic
F: Ameaning bringer of joy. In the Divine Comedy, Beatrice was Dante's guide through Paradise,...
Surname or Lastname
English
English : from the Old English personal name FriðulÄf ‘peace-survivor’.
Boy/Male
Latin
F: Ameaning bringer of joy. In the Divine Comedy, Beatrice was Dante's guide through Paradise,...
Boy/Male
Muslim
The most kind, The clement
Boy/Male
Latin
F: Ameaning bringer of joy. In the Divine Comedy, Beatrice was Dante's guide through Paradise,...
Surname or Lastname
English
English : variant of Farnell belonging to southwestern England, where the change from f to v arose from the voicing of f that was characteristic of this area in Middle English.
Male
Egyptian
, a mystical demon.
Boy/Male
Latin Gaelic
F: Ameaning bringer of joy. In the Divine Comedy, Beatrice was Dante's guide through Paradise,...
Female
Hindi/Indian
(f शशी, m: शशि): Hindi unisex name SHASHI means "having a hare."Â
Surname or Lastname
Variant spelling of German Drewes.English
Variant spelling of German Drewes.English : topographic name, from Old English drÄf ‘drove’, ‘cattle track’.
Boy/Male
Latin
Ameaning bringer of joy. In the Divine Comedy, Beatrice was Dante's guide through Paradise,...
Boy/Male
Latin
F: Youthful. The feminine form of Julian. Famous Bearer: Former Queen Juliana of the Netherlands.
Boy/Male
Latin
F: Ameaning bringer of joy. In the Divine Comedy, Beatrice was Dante's guide through Paradise,...
Male
Egyptian
, a prophet and priest of Amen Ra.
Girl/Female
Latin
F: Ameaning bringer of joy. In the Divine Comedy, Beatrice was Dante's guide through Paradise,...
Male
Hungarian
Hungarian form of Greek Christophoros, KRISTÓF means "Christ-bearer."Â
Boy/Male
Latin American
F: Ameaning bringer of joy. In the Divine Comedy, Beatrice was Dante's guide through Paradise,...
F WAVE
F WAVE
Biblical
a city in Judah
Boy/Male
Anglo Saxon
Defends.
Girl/Female
Indian, Sanskrit
The Consort of Lord Narayana
Boy/Male
Hindu
Shri
Boy/Male
Arabic, Muslim
Exalted; Blessed
Boy/Male
Indian
Radiant
Girl/Female
Hebrew
Eternal joy.
Boy/Male
Teutonic
Shining fighter.
Male
Chamoru
, moon.
Girl/Female
American, British, English
Little Bird
F WAVE
F WAVE
F WAVE
F WAVE
F WAVE
n. f.
Alt. of Marseillaise
n.
A small European falcon (Falco lithofalco, or F. aesalon).
n. f.
Alt. of Protegee
n.
The part or notes situated above F in alt.
n. f.
One who performs massage.
a.
Pertaining to, or discovered by, J. F. Meckel, a German anatomist.
n. f.
One who makes use of petroleum for incendiary purposes.
n.
A name given to the factors of a continued product when the former are derivable from one and the same function F(x) by successively imparting a constant increment or decrement h to the independent variable. Thus the product F(x).F(x + h).F(x + 2h) . . . F[x + (n-1)h] is called a factorial term, and its several factors take the name of factorials.
n. f.
One under the care and protection of another.
n. f.
Alt. of Masseuse
v. t.
The name of the fourth tone of the model scale, or scale of C. F sharp (F /) is a tone intermediate between F and G.
a. f.
Alt. of Marseillaise
n.
A duck of the genus Fuligula. Two American species (F. marila and F. affinis) are common. See Scaup duck.
n.
Any one of various marine spiral gastropods, esp., in the United States, either of two species of Fulgar (F. canaliculata, and F. carica).
a.
Of or pertaining to the Raptores. See Illust. (f) of Aves.
a. f.
Of or pertaining to Marseilles, in France, or to its inhabitants.
n.
The tone F.
imp. & p. p.
f Shoe.
n. f.
A native or inhabitant of Marseilles.