Simple Definition of body clock
: 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
Examples of body clock in a sentence
It takes a while for my body clock to get adjusted when I fly from New York to London.
First Known Use of body clock
Medical Definition of body clock
: the internal mechanisms that schedule bodily functions and activities—not usually used technically
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