biorhythm

[ bahy-oh-rith-uh m ]
/ ˈbaɪ oʊˌrɪð əm /

noun

Physiology. an innate periodicity in an organism's physiological processes, as sleep and wake cycles.

Origin of biorhythm

First recorded in 1960–65; bio- + rhythm

Related forms

bi·o·rhyth·mic, adjectivebi·o·rhyth·mic·i·ty [bahy-oh-rith-mis-i-tee] /ˌbaɪ oʊ rɪðˈmɪs ɪ ti/, nounbi·o·rhyth·mist, bi·o·rhyth·mi·cist, noun
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British Dictionary definitions for biorhythm

biorhythm

/ (ˈbaɪəʊˌrɪðəm) /

noun

a cyclically recurring pattern of physiological states in an organism or organ, such as alpha rhythm or circadian rhythm; believed by some to affect physical and mental states and behaviour

Derived Forms

biorhythmic, adjectivebiorhythmically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for biorhythm

biorhythm

[ bīō-rĭð′əm ]

n.

A biologically inherent cyclic variation or recurrence of an event or state, such as sleep cycles and circadian rhythms.

Related forms

bi′o•rhythmic (-rĭðmĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for biorhythm

biorhythm

[ bīō-rĭð′əm ]

A recurring biological process, such as sleep, that is controlled by the circadian rhythms of an organism. See more at circadian rhythm.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.