periodic

adj. occurring at regular intervals, recurrent; cyclic; seasonal, periodical

Period and periodic may refer to:An interval of time that an event, chain of events, instance or happening, takes place within. It is measured between a start point and an end point and generally repeats (which is where the term period came to describe a female's menstrual cycle) or progresses, in a with the end point of one period being the start point of the next.A periodic sentence.A full stop, a punctuation mark which indicates the end of a sentence (.).
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Adjective
1. happening or recurring at regular intervals
(synonym) periodical
(antonym) aperiodic, nonperiodic
(similar) cyclic
2. recurring at regular intervals
(similar) rhythmical, rhythmic
3. recurring or reappearing from time to time; "periodic feelings of anxiety"
(similar) sporadic

(a.)
Pertaining to, derived from, or designating, the highest oxygen acid (HIO/) of iodine.
  

(a.)
Alt. of Periodical
  

periodical, recurring at regular
astr. muz. etc. periodic
periodically
periodical magazine
journalfenomen periodic = recurrent phenomenon
fracţie periodică mat. = recurring decimal
publicaţie periodică = periodical publication
sistemul periodic al elementelor chim. = the periodic system