(of a person, creature, group, or species) Primarily active during the night. / (of an occurrence) Taking place at night, nightly.

A person or creature that is active at night. / (historical) A device for telling the time at night, rather like a sundial but read according to the stars.

During the night / Every night.

The condition or habit of being active at night.

plural of nocturnality

plural of nocturnal

Synonym of nocturnality

A work of art relating or dedicated to the night. / (music) A dreamlike or pensive composition, usually for the piano.

plural of nocturne

plural of nocturn