Lizet Elaine (simplyn2deep) wrote in 1_million_words,
Lizet Elaine
simplyn2deep
1_million_words

Word of the Day 02/02/21 Zeitgeber

Zeitgeber (noun)
zeitgeber [ tsahyt-gey-ber ]


noun
1. 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; < German (1954), literally, time-giver, on the model of Taktgeber an electronic synchronization device

Did You Know?
Zeitgebers are nature's alarm clocks-both biologically and etymologically. The word zeitgeber derives from a combination of two German terms, Zeit, which means "time," and Geber, which means "giver"-so a zeitgeber is literally a "time giver." In nature, zeitgebers tend to be cyclic or recurring patterns that help keep the body's circadian rhythms operating in an orderly way. For plants and animals, the daily pattern of light and darkness and the warmer and colder temperatures between day and night serve as zeitgebers, cues that keep organisms functioning on a regular schedule. For humans, societally imposed cycles, such as the schedule of the work or school day and regular mealtimes, can become zeitgebers as well.

Examples of zeitgeber in a Sentence
These clocks are wound by various environmental cues known as zeitgebers (time givers), such as light and temperature.
— Ferris Jabr, Smithsonian, "How Moonlight Sets Nature’s Rhythms," 22 June 2017

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