Nocturnal definitions

nŏk-tûr'nəl
Of, relating to, or occurring in the night.

Nocturnal stillness.

adjective
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1
Of, done, or happening in the night.
adjective
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Opening at night. Used of flowers.
adjective
30
1
Most active at night.

Nocturnal lizards.

adjective
27
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Functioning or active during the night.
adjective
26
1
Having blossoms that open at night.
adjective
23
1
Occurring at night.
20
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Most active at night. Many animals, such as owls and bats, are nocturnal.
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Relating to or occurring in the night.

Nocturnal stillness.

adjective
15
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Having flowers that open during the night and close at daylight. Nocturnal plants are often pollinated by moths.
14
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Most active at night.

Nocturnal lizards.

adjective
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The definition of nocturnal is something that is active or happens during the night.

An example of a nocturnal animal is a bat.

adjective
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(of a person, creature, group, or species) Primarily active during the night.

Nocturnal birds.

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(of an occurrence) Taking place at night.

A suspicious nocturnal outing.

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1

Origin of nocturnal

From Latin nocturnus (“nocturnal, nightly"), from Latin nox (“night"), from Proto-Indo-European *nókÊ·ts (“night"). Cognates include Ancient Greek νύξ (nuks), Sanskrit नक्ति (nákti), Old English niht (English night) and Proto-Slavic *noťь.