Word.ws English Dictionary

biological clock

biological clock noun: any of several mechanisms that regulate the periodicity of biological functions, such as the circadian rhythm.

Noun

biological clock (plural biological clocks)

  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.
    Synonyms:
    body clock
  2. (figuratively) The 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.
    • 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

biological clock meaning in Tamil and Indonesian

biological clock in Tamil

உயிரியல் கடிகாரம்

biological clock in Indonesian

any of several mechanisms that regulate the periodicity of biological functions
jam biologis

Synonyms of biological clock

Forms of biological clock

pluralbiological clocks

Words formed from biological clock

Questions about biological clock

What does biological clock mean?
Biological clock means any of several mechanisms that regulate the periodicity of biological functions, such as the circadian rhythm.
What is biological clock in Tamil?
Biological clock in Tamil is உயிரியல் கடிகாரம். See Biological clock meaning in Tamil.
What part of speech is biological clock?
Biological clock is a noun.
What is the plural of biological clock?
The plural of biological clock is biological clocks.

Words near biological clock in the dictionary

  1. biologic
  2. biologic time
  3. biological
  4. biological anthropology
  5. biological big bang
  6. biological clock
  7. biological clocks
  8. biological control
  9. biological controls
  10. biological determinism
  11. biological determinist

Source and license

Adapted from Wiktionary: biological clock (page history and authors); biological clock (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “biological clock.” Word.ws, https://word.ws/biological_clock. Based on Wiktionary, CC BY-SA 4.0.