frequency -
the number of occurrences within a given time period; "the frequency of modulation was 40 cycles per second"; "the frequency of his seizures increased as he grew older"
radio frequency an electromagnetic wave frequency between audio and infrared
infrared frequency,
infrared the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range; "they could sense radiation in the infrared"
wave number the reciprocal of the wavelength of a wave
attendance the act of being present (at a meeting or event etc.)
Frequency -
The quotient of the number of times n a periodicphenomenon occurs over the time t in which it occurs: f = n / t.
Frequency -
number of times an event occurred in an experiment.
Wikipedia
Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency. The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency.
OmegaWiki Dictionary
Ω
Frequency Number of occurrences of a repeated event per unit of time (e. g. oscillations per second).