Dictionary
body clock
noun
: a system in the body that controls when you need to sleep, eat, etc.
Full Definition of BODY CLOCK
: the internal mechanisms that schedule periodic bodily functions and activities —usually not used technically
See body clock defined for English-language learners
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First Known Use of BODY CLOCK
1968
Medical Dictionary
body clock
noun \-ˈkläk\
Medical Definition of BODY CLOCK
: the internal mechanisms that schedule bodily functions and activities—not usually used technically
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