Definition of crepuscular
1 : of, relating to, or resembling twilight : dim crepuscular light the crepuscular sky
2 : occurring or active during twilight crepuscular insects crepuscular activity crepuscular birds
crepuscular was our Word of the Day on 12/22/2016. Hear the podcast!
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Recent Examples of crepuscular from the Web
Gillum's wraithlike appearance and her crepuscular home (captured in its cobwebby gloom through Yeaji Kim's projections and Lindsey Lyddan's shadowy lighting) stand in contrast to the sunny — if poor — world of the village outside her door.
This aura suffuses every aspect of the production, including Lauren Helpern’s stylized woodland set; Isabella Byrd and Matt Frey’s crepuscular lighting and Leah Gelpe’s sound, which abounds in the susurrus of crickets.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'crepuscular'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
The early Romans had two words for "twilight." "Crepusculum" was favored by Roman writers for the half-light of evening, just after the sun sets; it is a diminutive formation based on their word for "dusky," which is "creper." "Diluculum" was reserved for morning twilight, just before the sun rises - it is related to lucidus, meaning "bright." We didn't embrace either of these Latin nouns as substitutes for our Middle English "twilight," but we did form the adjective "crepuscular" in the 17th century. At first, it only meant "dim" or "indistinct," often used in a figurative sense. In the 1820s, we added its special zoological sense, describing animals that are most active at twilight.
Medical Definition of crepuscular
1: of, relating to, or resembling twilight crepuscular depths of personality—William James
2: active in the twilight crepuscular animals
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