Dictionary

biological clock en · NOUN

Meanings

1. Any of several mechanisms that regulate the periodicity of biological functions, such as the circadian rhythm.
   • 2005 US Department of Health - Your guide to healthy sleep Your biological clock is actually a tiny bundle of cells in your brain that responds to light signals received through your eyes.
2. (figuratively) The perceived time limit of human fertility, especially for women, evoking pressure to conceive children before reproductive ability declines with age.
   • Take Linda, a thirty-nine-year-old newscaster who relished her career but began to hear the alarm ringing on her biological clock. 1994, Rugh Winter, Bonnie Eaker-Weil, Adultery, the Forgivable Sin:
   • Her biological clock is ticking.

Forms

Deriveds

tick-tock biological clock

Relateds

circadian rhythm · biorhythm

Synonyms

body clock

Translations (17)

cmn 生物鐘 /生物钟 (Translations) · fr horloge circadienne (any of several mechanisms that regulate the periodicity of biological functions) · da biologisk ur (Translations) · ko 생물학적 시계 (any of several mechanisms that regulate the periodicity of biological functions) · da biologisk ur (any of several mechanisms that regulate the periodicity of biological functions) · lb biologesch Auer (any of several mechanisms that regulate the periodicity of biological functions) · tr biyolojik saat (any of several mechanisms that regulate the periodicity of biological functions) · fi biologinen kello (any of several mechanisms that regulate the periodicity of biological functions) · fi hedelmällinen ikä (Translations) · id jam biologis (any of several mechanisms that regulate the periodicity of biological functions) · pt relógio biológico (any of several mechanisms that regulate the periodicity of biological functions) · fr horloge biologique (any of several mechanisms that regulate the periodicity of biological functions) · cmn 生物鐘 /生物钟 (any of several mechanisms that regulate the periodicity of biological functions) · pt relógio biológico (Translations) · la horologium biologicum (any of several mechanisms that regulate the periodicity of biological functions) · fr horloge biologique (Translations) · fr horloge interne (any of several mechanisms that regulate the periodicity of biological functions)