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.
Origin of frequency
Related formsnon·fre·quence, nounnon·fre·quen·cy, nouno·ver·fre·quen·cy, nounun·der·fre·quen·cy, noun, plural un·der·fre·quen·cies.
Examples from the Web for frequence
The frequence of anaemia with scrofula is only a result of the disease and not a symptom.
Several people caught the frequence of her glance, and turned their eyes in the same direction.Mask of Death|Paul Ernst
British Dictionary definitions for frequence
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
Science definitions for frequence
Culture definitions for frequence
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.