### Definition of Frequency

1. Noun. The number of occurrences within a given time period. "The frequency of his seizures increased as he grew older"

2. Noun. The ratio of the number of observations in a statistical category to the total number of observations.
Exact synonyms: Relative Frequency
Generic synonyms: Ratio
Specialized synonyms: Incidence, Relative Incidence

3. Noun. The number of observations in a given statistical category.
Exact synonyms: Absolute Frequency
Generic synonyms: Cardinal, Cardinal Number
Derivative terms: Frequent, Frequent

### Definition of Frequency

1. n. The condition of returning frequently; occurrence often repeated; common occurence; as, the frequency of crimes; the frequency of miracles.

### Definition of Frequency

1. Noun. The rate of occurrence of anything; the relationship between incidence and time period. ¹

2. Noun. The property of occurring often rather than infrequently. ¹

3. Noun. The quotient of the number of times $n$ a periodic phenomenon occurs over the time $t$ in which it occurs: $f = n / t$. ¹

¹ Source: wiktionary.com

1. [n -CIES]

### Medical Definition of Frequency

1. 1. The number of occurrences of a periodic or recurrent process per unit time, for example the number of vibrations of a particle per second or the number of repetitions of a complete wave form (cycles) per second. 2. The number of members of a population or statistical sample falling in a particular class. 3. Relative frequency, the average number of occurrences of a particular event in a large number of repeated trials. (07 Apr 1998)

### Frequency Pictures

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### Lexicographical Neighbors of Frequency

 frenumfrenumsfrenzicalfrenziedfrenziedlyfrenziednessfrenziesfrenzilyfrenzyfrenzying freonfreonsfrequencefrequencesfrequenciesfrequency (current term)frequency-response characteristicfrequency-response curvefrequency-shift keyingfrequency analysis frequency bandfrequency channelfrequency curvefrequency distributionfrequency domainfrequency encodingfrequency modulationfrequency modulationsfrequency multiplier

### Literary usage of Frequency

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Encyclopedia Americana: A Library of Universal Knowledge (1920)
"The arrangement acts as a generator of high frequency currents by reason of the inter-action of the input and output circuits through the transformer 7" and ..."

2. Electrical Measurements by Frank Arthur Laws (1917)
"Magnetic Vane frequency Meter.—The arrangement adopted in the Weston frequency meter ... Diagram for Weston magnetic vane frequency meter. coils sets up an ..."

3. Dictionary of Philosophy and Psychology: Including Many of the Principal by James Mark Baldwin (1901)
"If, however, the vibration exceeds a certain number in frequency, there will be compressional waves produced in the surrounding matter, and these will ..."

4. Bulletin by National Electric Light Association (1911)
"frequency of 133 cycles. My reason for advancing this theory Is the fact that early In the 90's I was personally responsible for starting two or three odd ..."

5. Transactions of the American Institute of Electrical Engineers by American Institute of Electrical Engineers (1913)
"By AIBB OPERATION OF frequency CHANGERS BY NE FUNK The object of this paper is to discuss the general conditions governing parallel operation, the theory, ..."

6. Proceedings of the Society for Experimental Biology and Medicine (1903)
"creasing time so that the influence of frequency of stimulation on flow rate ... Thus, frequency of stimulation was changed sequentially in the same rat ..."

7. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1831)
"It has long been known that the posture of the body has a considerable influence on the frequency of the pulse. Dr. G. finds that the pulse is less frequent ..."