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Definition of Circadian
1. Adjective. Of or relating to biological processes occurring at 24-hour intervals. "Circadian rhythms"
Partainyms: Day
Definition of Circadian
1. Adjective. (biology) of, relating to, or showing rhythmic behaviour with a period of 24 hours; especially of a biological process ¹
¹ Source: wiktionary.com
Definition of Circadian
1. [adj]
Medical Definition of Circadian
1. Relating to biologic variations or rhythms with a cycle of about 24 hours. Compare: infradian, ultradian. Origin: L. Circa, about, + dies, day (05 Mar 2000)