biorhythm

English

Etymology

First coined 1960, from bio- +‎ rhythm

Pronunciation

• (US) IPA^(key): /ˈbaɪ.oʊˌɹɪð.əm/

• Audio (General American):

  (file)

Noun

biorhythm (plural biorhythms)

1. (biology) Any cyclic biological or physiological pattern or activity.
2. (pseudoscience) Any of three sinusoidal graphs, normally plotted by computer, having a person's birthdate as origin, that are claimed to give meaningful information about emotional levels, physical energy levels, and mental/psychic sensitivity.
   • 1977 February 5, “Personal advertisement”, in Gay Community News, volume 4, number 32, page 14:

     Gay Biorhythms. Be Sure, Be Safe. Biorhythms charted for 1 year. Graphs or calendar. For more information write GCN Box 706.

Derived terms

• biorhythmic
• biorhythmics

Translations

biological pattern

• Basque: biorritmo
• Chinese:

  Mandarin: please add this translation if you can

• Czech: biorytmus m
• Finnish: biorytmi
• Hungarian: bioritmus (hu)
• Ido: bioritmo (io)
• Indonesian: bioritme (id)
• Italian: bioritmo (it) m
• Polish: biorytm m
• Portuguese: biorritmo m

pseudoscience

• Chinese:

  Mandarin: please add this translation if you can

• Finnish: biorytmi
• Hungarian: bioritmus (hu)
• Ido: bioritmo (io)
• Polish: biorytm
• Portuguese: biorritmo m

See also

• circadian rhythm
• menstrual cycle