zeitgeber

[ tsahyt-gey-ber ]
/ ˈtsaɪtˌgeɪ bər /

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.

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Origin of zeitgeber

1970–75; <German (1954), literally, time-giver, on the model of Taktgeber an electronic synchronization device

Words nearby zeitgeber

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021