nocturnal
UK /nɒkˈtɜː.nəl/ · US /nɑkˈtɝ.nəl/ adjective, noun
Forms nocturnals nocturnall
- adjective Of a person, creature, group, or species, primarily active during the night. “nocturnal birds”
- adjective Of an occurrence, taking place at night, nightly. “a suspicious nocturnal outing”
- noun A person or creature that is active at night.
- noun (historical) A device for telling the time at night, rather like a sundial but read according to the stars.
Synonyms
Antonyms
Etymology
From Middle French nocturnal, from Latin nocturnālis (“nocturnal”), from Latin nocturnus (“nocturnal”), from Latin nox (“night”), from Proto-Indo-European *nókʷts (“night”). Cognates include Ancient Greek νύξ (núx), Sanskrit नक्ति (nákti), Old English niht (English night) and Proto-Slavic *noťь.
Webster’s 1913
- adjective Of, pertaining to, done or occuring in, the night; as, nocturnal darkness, cries, expedition, etc.; --opposed to Ant: diurnal.
- adjective Having a habit of seeking food or moving about at night; as, nocturnal birds and insects.
- noun An instrument formerly used for taking the altitude of the stars, etc., at sea. I. Watts.
Etymology [L. nocturnalis, nocturnus, fr. nox, noctis, night. See Night, and cf. Nocturn.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “nocturnal”, CC BY-SA 4.0. Details