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chronobiology

[kron-oh-bahy-ol-uh-jee]
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noun
  1. the science or study of the effect of time, especially rhythms, on living systems.
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Origin of chronobiology

First recorded in 1975–80; chrono- + biology
Related formschron·o·bi·o·log·i·cal [kron-oh-bahy-uh-loj-i-kuh l] /ˌkrɒn oʊˌbaɪ əˈlɒdʒ ɪ kəl/, adjectivechron·o·bi·ol·o·gist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for chronobiology

chronobiology

noun
  1. the branch of biology concerned with the periodicity occurring in living organismsSee also biological clock, circadian
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Derived Formschronobiologist, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

chronobiology in Medicine

chronobiology

(krŏn′ō-bī-ŏlə-jē)
n.
  1. The study of the effect of time on biological events, especially repetitive or cyclic phenomena in individuals.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.