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Definition of Biological clock
1. Noun. An innate mechanism in living organisms that controls the periodicity of many physiological functions.
Generic synonyms: Mechanism
Definition of Biological clock
1. Noun. (biology) Any of several mechanisms that regulate the periodicity of biological functions ¹
2. Noun. The progression from puberty to menopause during which a woman can bear children ¹
¹ Source: wiktionary.com
Medical Definition of Biological clock
1.