zeitgeber
/ˈzʌɪtɡeɪbə
/noun Physiology
A rhythmically occurring natural phenomenon which acts as a cue in the regulation of the body’s circadian rhythms.And while light is a common zeitgeber, other external stimuli can play this role as well....
- Consider one zeitgeber that virtually all businesses share: the quarterly business calendar.
- Scientists call external time cues zeitgebers.
Origin
Mid 20th century: from German Zeitgeber, from Zeit 'time' + Geber 'giver'.
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