frequency

Definition from Wiktionary, a free dictionary

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Contents 1 English 1.1 Etymology 1.2 Pronunciation 1.3 Noun 1.3.1 Translations

[edit] English

[edit] Etymology

From Latin frequens + -t- + -ia.

[edit] Pronunciation

• enPR: frĕʹkwən-sē, IPA: /ˈfriːkwənsi/, SAMPA: /"fri:kw@nsi/

[edit] Noun

frequency (plural frequencies)

1. (uncountable) The rate of occurrence of anything; the relationship between incidence and time period.
   • With growing confidence, the Viking’s raids increased in frequency.
   • The frequency of bus service has been improved from 15 to 12 minutes.
2. (uncountable) The property of occurring often rather than infrequently.
   • The FAQ addresses questions that come up with some frequency.
   • The frequency of the visits was what annoyed him.
3. (countable) The quotient of the number of times n a periodic phenomenon occurs over the time t in which it occurs: f = n / t.
   • The frequency of the musical note A above middle C is 440 oscillations per second.
   • The frequency of a wave is its velocity v divided by its wavelength λ: f = v / λ.
   • Broadcasting live at a frequency of 98.3 megahertz, we’re your rock alternative!
   • The frequency for electric power in the Americas is generally 60 Hz rather than 50.

[edit] Translations