Definify.com

Webster 1913 Edition

{

(-k?-l?r)

(-l?s)

, }

Adj.

[Cf. F.

crépusculaire

Pertaining to twilight; glimmering; hence, imperfectly clear or luminous.

This semihistorical and

crepuscular

period.

Sir G. C. Lewis.

(Zool.)

Flying in the twilight or evening, or before sunrise; – said certain birds and insects.

Others feed only in the twilight, as bats and owls, and are called

crepuscular

Whewell.

, CREPUSCULOUS,

Adj.

Pertaining to twilight; glimmering; noting the imperfect light of the morning and evening; hence, imperfectly clear or luminous.

crepusculous ‎(comparative more crepusculous, superlative most crepusculous)