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The study of the effects of time and rhythmical phenomena on life processes.

chron′o·bi·o·log′ic (-ə-lŏj′ĭk), chron′o·bi·o·log′i·cal (-ĭ-kəl) adj.
chron′o·bi·o·log′i·cal·ly adv.
chron′o·bi·ol′o·gist n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) relating to chronobiology
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
It added that summertime arrangements are estimated to generate positive effects linked to more outdoor leisure activities but on the other hand, chronobiologic research findings suggest that the effect on the human biorhythm may be more severe than previously thought.
This short review article focuses on two main issues in PCOS-MS phenotype development: (a) the impact of androgen excess on WAT function and (b) a possible adjuvant melatonin therapy to improve the chronobiologic profile in PCOS individuals.
Frederickson, "The use of bright light in the treatment of chronobiologic sleep and mood disorders: the phase-response curve," Psychopharmacology Bulletin, vol.
We can refer again to the double face of Mel, as a chronobiologic hormone and as a highly efficient antioxidant and free radical scavenger.
Not only is saliva testing more accurate, inasmuch as it measures only the active free hormone, but it also allows chronobiologic testing, which is not feasible with serum testing with its attendant venipunctures.
Studies by our group (10) and others (11) have shown that overattention to mood variation without considering associated cognitive, speech-language, chronobiologic, and motor signs of mania /hypomania accounts for substantial overdiagnosis of BD in patients with non-specific mood disturbances, particularly in those with active substance abuse or borderline personality disorder (BPD).
With respect to circadian dysregulation, research suggests that chronobiologic abnormalities, in the form of phase shifts of the core-body temperature rhythm, are related to sleep initiation or maintenance problems (12).