The mechanism in every organism that controls timing of biological rhythms. In mammals it is located in the supraciliasmatic nucleus of the hypothalmus. See determinism. Compare environmental determinism.
BIOLOGICAL CLOCK: "Lyn could feel her biological clock ticking as she got older."
Cite this page: N., Pam M.S., "BIOLOGICAL CLOCK," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/biological-clock-2/ (accessed August 18, 2019).
