biological clock

短语

[计] 生物钟 [化] 生物钟

词形变化

biological clocks 复数 biological clocks

释义与例句

n.
  1. 1.

    Any of several mechanisms that regulate the periodicity of biological functions, such as the circadian rhythm.

    生物钟

    生物

    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. 2.

    The perceived time limit of human fertility, especially for women, evoking pressure to conceive children before reproductive ability declines with age.

    比喻

    Her biological clock is ticking.

词汇关系

名词

上位词 1

mechanism