Dec 4, 2016 · The meaning of NOCTURNAL is of, relating to, or occurring in the night. How to use nocturnal in a sentence.

NOCTURNAL definition: 1. being active or happening at night rather than during the day: 2. of the night, or relating to…. Learn more.

Definition of nocturnal adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Nocturnal means occurring at night. ...long nocturnal walks. ...the immensity of the nocturnal sky.

nocturnal, adj. & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

1. Occurring at night. 2. Most active at night. Many animals, such as owls and bats, are nocturnal. Compare diurnal. 3. Having flowers that open during the night and close at daylight. Nocturnal plants …

Dec 24, 2025 · nocturnal (comparative more nocturnal, superlative most nocturnal) (of a person, creature, group, or species) Primarily active during the night. Many of these classic methods are still …

NOCTURNAL definition: of or relating to the night (diurnal ). See examples of nocturnal used in a sentence.

Zoology, Animal Behavior active at night (opposed to diurnal): nocturnal animals. Botany opening by night and closing by day, as certain flowers (opposed to diurnal).

Britannica Dictionary definition of NOCTURNAL 1 : active mainly during the night nocturnal animals — opposite diurnal 2 formal : happening at night