Meanings
plural biological clocks
- biologyAny 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.
Synonyms: body clock
- figurativelyThe perceived time limit of human fertility, especially for women, evoking pressure to conceive children before reproductive ability declines with age.
Her biological clock is ticking.
1 more example
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
Synonyms & antonyms
nounAny of several mechanisms that regulate the periodicity of biological functions, such as the circadian rhythm.
Translations
Chinese Mandarin 生物鐘 /生物钟, 生物鐘 /生物钟
- 生物鐘 /生物钟 (shēngwùzhōng)any of several mechanisms that regulate the periodicity of biological functions
- 生物鐘 /生物钟 (shēngwùzhōng)Translations
Danish biologisk ur, biologisk ur
- biologisk urany of several mechanisms that regulate the periodicity of biological functions
- biologisk urTranslations
Finnish biologinen kello, hedelmällinen ikä
- biologinen kelloany of several mechanisms that regulate the periodicity of biological functions
- hedelmällinen ikäTranslations
French horloge biologique, horloge circadienne
- horloge biologiqueany of several mechanisms that regulate the periodicity of biological functions
- horloge circadienneany of several mechanisms that regulate the periodicity of biological functions
- horloge interneany of several mechanisms that regulate the periodicity of biological functions
- horloge biologiqueTranslations
Indonesian jam biologis
- jam biologisany of several mechanisms that regulate the periodicity of biological functions
Korean 생물학적 시계
- 생물학적 시계 (saengmulhakjeok sigye)any of several mechanisms that regulate the periodicity of biological functions
Latin horologium biologicum
- horologium biologicumany of several mechanisms that regulate the periodicity of biological functions
Portuguese relógio biológico, relógio biológico
- relógio biológicoany of several mechanisms that regulate the periodicity of biological functions
- relógio biológicoTranslations
Turkish biyolojik saat
- biyolojik saatany of several mechanisms that regulate the periodicity of biological functions
Cite this entry
biological clock. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/biological%20clock
“biological clock.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/biological%20clock. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “biological clock,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/biological%20clock.
Source: biological clock on Wiktionary, CC BY-SA 4.0.