nocturnal

Definition of abbreviation (noun) -

pertaining to or occurring in the night

Part of speech:

Adjective

nocturnal; more nocturnal; most nocturnal; less nocturnal; least nocturnal

Example sentences with this word:

Bats, being nocturnal, are only seen during the day if sick or injured.

Many animals are diurnal - that is they are active in the daytime and inactive at night - whereas nocturnal creatures show the opposite orientation.

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