biorhythmicsn.
/ˌbʌɪə(ʊ)ˈrɪðmɪks/, U.S. /ˌbaɪoʊˈrɪðmɪks/ With singular agreement. The biorhythmic properties of a person or other living organism; the study of biorhythms, spec. the use of one's own biorhythms (biorhythm n. 2) for the purposes of self-improvement.
ΘΚΠ
the world > life > biology > biological processes > cycles of activity > [noun] > biorhythm
biorhythm1916
biorhythmics1947
1947 Acta Psychiatrica et Neurologica Supplementum 40 189 But it is possible that this relation is a part, if a small one, of the different biorhythmics of the two sexes.
1973 Nursing Times 15 Feb. 207/2 Biorhythmics is the modern study of the three main biological functions.
1985 Observer 21 Apr. (Colour Suppl.) 7/3 I have done yoga, reflexology, biorhythmics, aromatherapy and EST.
Derivatives
bioˈrhythmicist n. a person who advocates or uses biorhythmics.
ΘΚΠ
the world > life > biology > biological processes > cycles of activity > [noun] > biorhythm > study of biorhythms > one who studies
biorhythmicist1972
1972 Time 10 Jan. 48/3 Although there has been no rational explanation so far for the claims of biorhythmicists, variations of the concept have been put to practical use in at least two countries.
This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021).
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n.1947