资料来源 : pyDict

C频率,周率;U频繁,屡次

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Frequency \Fre"quen*cy\, n.; pl. {Frequencies}. [L. frequentia
   numerous attendance, multitude: cf. F. fr['e]quence. See
   {Frequent}.]
   1. The condition of returning frequently; occurrence often
      repeated; common occurence; as, the frequency of crimes;
      the frequency of miracles.

            The reasons that moved her to remove were, because
            Rome was a place of riot and luxury, her soul being
            almost stifled with, the frequencies of ladies'
            visits.                               --Fuller.

   2. A crowd; a throng. [Obs.] --B. Jonson.

资料来源 : WordNet®

frequency
     n 1: the number of occurrences within a given time period
          (usually 1 second); "the frequency of modulation was 40
          cycles per second" [syn: {frequence}, {oftenness}]
     2: the ratio of the number of observations in a statistical
        category to the total number of observations [syn: {relative
        frequency}]
     3: the number of observations in a given statistical category
        [syn: {absolute frequency}]