Definition of biological clock in English:

biological clock

Syllabification: bi·o·log·i·cal clock


An innate mechanism that controls the physiological activities of an organism that change on a daily, seasonal, yearly, or other regular cycle.
More example sentences
  • Yes, that's controlled by an internal biological clock.
  • At dusk, however, the insect is activated by an internal biological clock, which regulates most of its behaviors.
  • This helps set the internal biological clock that regulates your sleep and waking patterns.

Definition of biological clock in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day bimble
Pronunciation: ˈbimbəl
walk or travel at a leisurely pace