rhythm

(redirected from circannual rhythm)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
See: regularity
References in periodicals archive ?
One well-accepted hypothesis is that patterns of melatonin mediate the synchronization between an endogenous circannual rhythm in reproductive activity and the external annual rhythm in day length.
Joo's latest epic is Circannual Rhythm (pibloktok), 2003, a twenty-five-minute, three-channel video projection.