Learning / English Dictionary |
BIOLOGICAL CLOCK
Pronunciation (US): | (GB): |
I. (noun)
Sense 1
Meaning:
An innate mechanism in living organisms that controls the periodicity of many physiological functions
Classified under:
Nouns denoting time and temporal relations
Hypernyms ("biological clock" is a kind of...):
mechanism (a natural object resembling a machine in structure or function)