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zeitgeber

 - 2 dictionary results

zeit⋅ge⋅ber

[tsahyt-gey-ber]
–noun
an environmental cue, as the length of daylight or the degree of temperature, that helps to regulate the cycles of an organism's biological clock.

Origin:
1970–75; < G (1954), lit., time-giver, on the model of Taktgeber an electronic synchronization device
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: zeit·ge·ber
Pronunciation: 'tsIt-"gA-b&r, 'zIt-
Function: noun
: an environmental agent or event (as the occurrence of light ordark) that provides the stimulus setting or resetting a biological clock of an organism
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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