- of, relating to, or resembling twilight; dim; indistinct.
- Zoology. appearing or active in the twilight, as certain bats and insects.
Origin of crepuscular
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for crepuscular
This crepuscular conflict requires a new vocabulary and a familiarity with a new type of history.America's Terrorism Amnesia
January 5, 2010
Through the crepuscular whiteness the trees hung in blotted masses.The Reef
It is blended twilight of intellect and sensation; it is the crepuscular of thought.The Life of Francis Thompson
She lay white, and as if suspended, in the crepuscular atmosphere of sunset mingling with the ashy gleam of the vast anchorage.Within the Tides
Some species of foxes, however, are twilight prowlers, and one or two of the fennecs are also crepuscular.The Young Yagers
Crepuscular, kre-pus′kū-lar, adj. of or pertaining to twilight—also Crepus′culous.
- of or like twilight; dim
- (of certain insects, birds, and other animals) active at twilight or just before dawn
C17: from Latin crepusculum dusk, from creper dark
Word Origin and History for crepuscular
figurative use from 1660s; literal use from 1755, from Latin crepusculum "twilight, dusk," from creper "dusky," of unknown origin. Especially of evening twilight.
Online Etymology Dictionary, © 2010 Douglas Harper