CIRCADIAN


Meaning of CIRCADIAN in English

adj.

Pronunciation: s ə r- ' k ā -d ē - ə n

Function: adjective

Etymology: Latin circa about + dies day + English 2 -an ― more at DEITY

Date: 1959

: being, having, characterized by, or occurring in approximately 24-hour periods or cycles (as of biological activity or function) < circadian rhythms in activity>

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.