Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
noun
A rhythmically occurring cue given by the environment, such as a change in light or temperature, to reset the internal body clock.
Definition source: English Wiktionary via Wiktextract
Topics: medicine, physiology, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree Proto-Indo-European *deh2-der. Proto-Indo-European *deh2y- Proto-Indo-European *-tis Proto-Indo-European *déh2itis Proto-Germanic *tīdiz Proto-West Germanic *tīdi Old High German zīt Middle High German zīt German Zeit Proto-Indo-European *ghebh- Proto-Germanic *gebaną Proto-West Germanic *geban Old High German gëban Middle High German gëben German geben Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old High German -āri German -er German Geber German Zeitgeberbor. English zeitgeber Borrowed from German Zeitgeber.
