frequency

fre·quen·cy  (frkwn-s)

n. pl. fre·quen·cies

1. The property or condition of occurring at frequent intervals.

2. Mathematics & Physics The number of times a specified periodic phenomenon occurs within a specified interval, as:

a. The number of repetitions of a complete sequence of values of a periodic function per unit variation of an independent variable.

b. The number of complete cycles of a periodic process occurring per unit time.

c. The number of repetitions per unit time of a complete waveform, as of an electric current.

3. Statistics

a. The number of measurements in an interval of a frequency distribution.

b. The ratio of the number of times an event occurs in a series of trials of a chance experiment to the number of trials of the experiment performed.

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[Latin frequentia, multitude, from frequns, frequent-, crowded, numerous, frequent.]

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frequency [ˈfriːkwənsɪ]

n pl -cies

1. the state of being frequent; frequent occurrence

2. the number of times that an event occurs within a given period; rate of recurrence

3. (Mathematics) Physics the number of times that a periodic function or vibration repeats itself in a specified time, often 1 second. It is usually measured in hertz. Symbol ν, f

4. (Mathematics & Measurements / Statistics) Statistics

a.  the number of individuals in a class (absolute frequency)

b.  the ratio of this number to the total number of individuals under survey (relative frequency)

5. (Life Sciences & Allied Applications / Biology) Ecology

a.  the number of individuals of a species within a given area

b.  the percentage of quadrats that contains individuals of a species Also called (for senses 1, 2) frequence

[from Latin frequentia a large gathering, from frequēns numerous, crowded]

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frequency  (frkwn-s)

1. Physics The rate at which a repeating event occurs, such as the full cycle of a wave. Frequencies are usually measured in hertz. Compare amplitude. See also period.

2. Mathematics The ratio of the number of occurrences of some event to the number of opportunities for its occurrence.

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Frequency 

(See also DURATION, TIME.)

once in a blue moon Very rarely. A blue moon occurs when there is a full moon twice in the same month, an unusual event, but one that takes place from time to time.

rare as hen’s teeth See scarce as hen’s teeth, ABSENCE.

when two Fridays come together Never. Since two Fridays never come together, this expression is usually used as a sarcastic quip when one is asked when he intends to do something of an onerous nature such as complete a project, pay back a personal loan, or the like.

Thesaurus

Noun	1.	frequency - the number of occurrences within a given time period; "the frequency of modulation was 40 cycles per second"; "the frequency of his seizures increased as he grew older" frequence, oftenness audio frequency, audio - an audible acoustic wave frequency radio frequency - an electromagnetic wave frequency between audio and infrared infrared, infrared frequency - the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range; "they could sense radiation in the infrared" wave number - the reciprocal of the wavelength of a wave attendance - the frequency with which a person is present; "a student's attendance is an important factor in her grade" count per minute, counts/minute - frequency per minute sampling frequency - (telecommunication) the frequency of sampling a continuously varying signal rate - a magnitude or frequency relative to a time unit; "they traveled at a rate of 55 miles per hour"; "the rate of change was faster than expected"
	2.	frequency - the ratio of the number of observations in a statistical category to the total number of observations relative frequency ratio - the relative magnitudes of two quantities (usually expressed as a quotient) incidence, relative incidence - the relative frequency of occurrence of something
	3.	frequency - the number of observations in a given statistical category absolute frequency cardinal number, cardinal - the number of elements in a mathematical set; denotes a quantity but not the order

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frequency

noun recurrence, repetition, constancy, periodicity, commonness, frequentness, prevalence The cars broke down with increasing frequency.

Translations

frequency [ˈfriːkwənsɪ]

A. N (gen, Elec) → frecuencia f
this is happening with increasing frequency → esto está ocurriendo con cada vez mayor frecuencia
high/low frequency → alta/baja frecuencia

B. CPD frequency band N → banda f de frecuencia
frequency distribution N (Statistics) → distribución f de frecuencia
frequency modulation N → frecuencia f modulada

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frequency [ˈfriːkwənsi] n

[occurrence] → fréquence f
the high frequency of sth → la fréquence élevée de qch
with increasing frequency (= more and more often) → de plus en plus souvent
to increase in frequency → être de plus en plus fréquent(e)

(PHYSICS) [sound wave] → fréquence f
frequency modulation n → modulation f de fréquence

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frequency

n → Häufigkeit f; (Phys) → Frequenz f; high/low frequency → Hoch-/Niederfrequenz f

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frequency:

frequency band

n → Frequenzband nt

frequency distribution

n → Häufigkeitsverteilung f

frequency modulation

n → Frequenzmodulation f

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frequency [ˈfriːkwənsɪ] n → frequenza
high/low frequency → alta/bassa frequenza

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frequency → تردد častost hyppighed Häufigkeit συχνότητα frecuencia tiheys fréquence učestalost frequenza 頻発 빈도 frequentie hyppighet częstość frequência, freqüência частота frekvens ความถี่ sıklık tần số 频率