The quality or condition of being regular; recurrence at regular intervals.
The repetition of similar properties in chemical elements, as indicated by their positioning within the regular dining table.
Recurrence of a female's durations; menstruation.
the standard of becoming periodic; tendency to recur at regular periods.
the caliber of a function with a repeated pair of values at regular periods.
the high quality or condition of being periodical, or frequently recurrent.
regular personality; habitual tendency or disposition to recur at stated intervals period.
In physical, the sheer number of recurrences of a periodic movement, eg a vibration, in a unit period; particularly, in electricity, how many full periods or cycles per second of an alternating or oscillating existing: same as frequency. The typical electrical frequencies tend to be 25 and 60 in america and 50 in European countries.
In botany, the practice in a plant of adjusting its growth or the moves of their organs to regular alterations in problems (of light, heat, etc.), either annual or diurnal. Periodicity can be exhibited in some spontaneous moves perhaps not correlated with time of day or season. See phenology, rest, 5, sensitive-plant, and regular motion.