noun \ˈfrē-kwən(t)-sē\

: the fact or condition of happening often : common occurrence

: the number of times that something happens during a particular period

: the number times that something (such as a sound wave or radio wave) is repeated in a period of time (such as a second)

plural fre·quen·cies

Full Definition of FREQUENCY

:  the fact or condition of occurring frequently
a :  the number of times that a periodic function repeats the same sequence of values during a unit variation of the independent variable
b :  the number, proportion, or percentage of items in a particular category in a set of data
:  the number of repetitions of a periodic process in a unit of time: as
a :  the number of complete alternations per second of an alternating current
b :  the number of complete oscillations per second of energy (as sound or electromagnetic radiation) in the form of waves

Examples of FREQUENCY

  1. the alarming frequency of serious automobile accidents caused by young drivers
  2. The frequency of student errors was frustrating to the young teacher.
  3. Our visits decreased in frequency.
  4. Errors were occurring with increasing frequency.
  5. a sound wave of high frequency
  6. waves having very different frequencies from one another
  7. a current having a frequency of 60 hertz
  8. a radio frequency of 30 megahertz

First Known Use of FREQUENCY


Other Electrical Engineering Terms

feedback, fuse, incandescent, noise, resonance


noun \ˈfrē-kwən-sē\   (Medical Dictionary)
plural fre·quen·cies

Medical Definition of FREQUENCY

: the number of individuals in a single class when objects are classified according to variations in a set of one or more specified attributes
: the number of repetitions of a periodic process in a unit of time


noun    (Concise Encyclopedia)

Number of waves that pass a fixed point per unit time; also, the number of cycles or vibrations undergone in unit time by a body in periodic motion. Frequency f is the reciprocal of the time T taken to complete one cycle (the period), or 1/T. The frequency with which earth rotates is once per 24 hours. Frequency is usually expressed in units called hertz (Hz). One hertz is equal to one cycle per second; one kilohertz (kHz) is 1,000 Hz, and one megahertz (MHz) is 1,000,000 Hz. The musical pitch A above middle C (the A string of a violin) has been widely standardized as 440 Hz.


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