Zeitgeber meaning

tsīt'gĕb'ər, zīt'-
An external stimulus or cue, such as daylight or a regularly repeated occurrence, that serves to regulate an organism's biological clock.
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A stimulus, esp. light or heat, that affects an organism's biological clock.
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An external stimulus or cue, such as daylight or a regularly repeated occurrence, that serves to regulate an organism's biological clock.
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(biology) A rhythmically occurring cue given by the environment, such as a change in light or temperature, to reset the internal body clock.
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Origin of zeitgeber

  • German Zeitgeber Zeit time Zeitgeist Geber giver (from geben to give) (from Middle High German) (from Old High German geban ghabh- in Indo-European roots)
    From American Heritage Dictionary of the English Language, 5th Edition
  • German Zeitgeber, "time-giver".
    From Wiktionary