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circadian
(redirected from Circadian clock)

    Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
cir·ca·di·an  (sr-kd-n, -kd-, sûrk-dn, -d-)
adj. Biology
Relating to or exhibiting approximately 24-hour periodicity.
[Latin circ, around; see circa + Latin dis, day; see dyeu- in Indo-European roots.]
cir·cadi·an·ly adv.
circadian
Adjective
of biological processes that occur regularly at 24-hour intervals [Latin circa about + dies day]
ThesaurusLegend:  Synonyms Related Words Antonyms
Adj.1.circadian - of or relating to biological processes occurring at 24-hour intervals; "circadian rhythms"


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The area of the brain called the hypothalamus, which links the nervous system to the endocrine system by synthesizing and secreting neurohormones that affect sleep, emotions, body temperature, hunger and thirst, is the mainspring of our circadian clock.
Destination Points: Acupuncture Treatment for Jet Lag by Airguide Online
Soon after Berson's finding, Figueiro and others began testing how well blue light can reset people's circadian clocks.
Light impacts: hue and timing determine whether rays are beneficial ... by Raloff, Janet / Science News
Most mammalian cells function on an approximate 24-hour cell cycle, and the circadian clock has been implicated in regulating the phases of cell division.
Timeless protein plays a role in coupling cell cycle and circadian ... by Phelps, Jerry / Environmental Health Perspectives
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