HyperDic: biological_clock

English > 1 sense of the expression biological clock:
NOUNtimebiological clockan innate mechanism in living organisms that controls the periodicity of many physiological functions
English > biological clock: 1 sense > noun 1, time
MeaningAn innate mechanism in living organisms that controls the periodicity of many physiological functions.
BroadermechanismA natural object resembling a machine in structure or function

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