Circadian Definition
sər-kādē-ən, -kădē-, sûrkə-dīən, -dē-
adjective
Relating to or exhibiting approximately 24-hour periodicity.
American Heritage Medicine
Designating or of behavioral or physiological rhythms associated with the 24-hour cycles of the earth's rotation, as, in man, the regular metabolic, glandular, and sleep rhythms which may persist through a dislocation of day and night caused by high-speed travel.
Webster's New World
(biology) Of, relating to, or showing rhythmic behaviour with a period of 24 hours; especially of a biological process.
Wiktionary
Origin of Circadian
-
From the Latin circā (“about”) and diēs (“a day”) with the English suffix -an. Compare circannual.
From Wiktionary
-
Latin circā around circa Latin diēs day dyeu- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
Related Articles
Circadian Is Also Mentioned In
Find Similar Words
Find similar words to circadian using the buttons below.