biorhythm

English dictionary entry

Meanings

noun
  1. Any cyclic biological or physiological pattern or activity.
  2. Any of three sinusoidal graphs, normally plotted by a computer, containing a person's birthdate as an origin, that are claimed to provide meaningful information about emotional levels, physical energy levels, and mental or psychic sensitivity.

Pronunciation

/ˈbaɪ.oʊˌɹɪð.əm/ LL-Q1860 (eng)-Qwertygiy-biorhythm.wav

Word forms

biorhythm biorhythms

Etymology

Etymology tree Proto-Indo-European *gʷeyh₃-der. Ancient Greek βῐ́ος (bĭ́os) Ancient Greek βῐο- (bĭo-)der. English bio- Proto-Indo-European *ser-? Proto-Indo-European *srew- Proto-Indo-European *sru-dʰ-mo-s Proto-Hellenic *hrutʰmós Ancient Greek ῥῠθμός (rhŭthmós)bor. Latin rhythmusder. English rhythm English biorhythm First coined 1960, from bio- + rhythm.

Related words

Derived words

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