- The number of repetitions of a complete sequence of values of a periodic function per unit variation of an independent variable.
- The number of complete cycles of a periodic process occurring per unit time.
- The number of repetitions per unit time of a complete waveform, as of an electric current.
An example of frequency is a person blinking their eyes 47 times in one minute.
Origin of frequency
- Latin frequentia multitude from frequēns frequent- crowded, numerous, frequent
From American Heritage Dictionary of the English Language, 5th Edition
- From Latin frequentia, from frequens.