noun, plural fre·quen·cies.
- the number of periods or regularly occurring events of any given kind in unit of time, usually in one second.
- the number of cycles or completed alternations per unit time of a wave or oscillation. Symbol: F; Abbreviation: freq.
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Origin of frequency
OTHER WORDS FROM frequencynon·fre·quence, nounnon·fre·quen·cy, nouno·ver·fre·quen·cy, nounun·der·fre·quen·cy, noun, plural un·der·fre·quen·cies.
Words nearby frequency
Example sentences from the Web for frequency
This comes as fight frequency leaguewide has tapered off over the years and nosedived over the past decade.
The researchers thought higher storm frequency might shape where lizards evolved to have better grips.Analyze This: Hurricanes may help lizards evolve better grips|Carolyn Wilke|August 26, 2020|Science News For Students
The researchers pinpointed the frequency of radiation needed to make the atoms take the leap, which is equivalent to finding the size of the gap between the energy levels.A measurement of positronium’s energy levels confounds scientists|Emily Conover|August 24, 2020|Science News
The pattern of waves, called a chirp, would increase in frequency over time.
Generating and transmitting them is difficult and expensive, requiring special lasers, and even then the frequency range is limited.6G Will Be 100 Times Faster Than 5G—and Now There’s a Chip for It|Vanessa Bates Ramirez|August 21, 2020|Singularity Hub
That frequency is within the range used by amateur radio operators, so anyone can listen in.Luxembourg and China Team Up on Private Mission to the Moon|Matthew R. Francis|October 26, 2014|DAILY BEAST
One of the biggest concerns in Europe is the frequency of air traffic with West Africa.
The agent in the security room repeats this message to those at the debate site, listening on the “Mike” radio frequency.Behind the Scenes With a ‘Site Agent’: The Secret Service’s Hardest Job|Marc Ambinder|October 2, 2014|DAILY BEAST
Despairing about the length and frequency of the many fashion weeks has become a tired refrain.The Drama of Being a Model: Spike Jonze and Jonah Hill Land in Fashion Week|Allison McNearney|September 8, 2014|DAILY BEAST
The bigger the black hole, the lower the frequency, much as it is with musical instruments.
In short, there is but one fault I find with the country, and it is a great one, I mean the frequency of earthquakes.Life of Richard Trevithick, Volume II (of 2)|Francis Trevithick
The secrecy of these meetings make them more enjoyable, and their length and frequency are unconsciously increased.The value of a praying mother|Isabel C. Byrum
The frequency with which it is seen near cliffs suggests that it finds concealment under rocks.A Synopsis of the American Bats of the Genus Pipistrellus|Walter W. Dalquest
Certainty of meaning precedes frequency of use; and this necessary confidence 238 is gained from a study of the dictionary.English: Composition and Literature|W. F. (William Franklin) Webster
Earthquakes increased in frequency until Rick and Scotty felt as though the ground never ceased shuddering.The Flaming Mountain|Harold Leland Goodwin
British Dictionary definitions for frequency
noun plural -cies
- the number of individuals in a class (absolute frequency)
- the ratio of this number to the total number of individuals under survey (relative frequency)
- the number of individuals of a species within a given area
- the percentage of quadrats that contains individuals of a species
Word Origin for frequency
Scientific definitions for frequency
Cultural definitions for frequency
In physics, the number of crests of a wave that move past a given point in a given unit of time. The most common unit of frequency is the hertz (Hz), corresponding to one crest per second. The frequency of a wave can be calculated by dividing the speed of the wave by the wavelength. Thus, in the electromagnetic spectrum, the wavelengths decrease as the frequencies increase, and vice versa.