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frequency definition

fre·quency (frēkwən sē)

noun pl. frequencies -·cies

  1. Obsolete
    1. the condition of being crowded
    2. a crowd
  2. the fact of occurring often or repeatedly; frequent occurrence
  3. the number of times any action or occurrence is repeated in a given period
  4. Math., Statistics
    1. the number of times an event, value, or characteristic occurs in a given period
    2. the ratio of the number of times a characteristic occurs to the number of trials in which it can potentially occur
  5. Physics the number of periodic oscillations, vibrations, or waves per unit of time: usually expressed in hertz: abbrev. f

Etymology: ME < Fr < L frequentia < frequens: see frequent

Also frequence fre′·quence (-kwəns)

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