Bible Dictionaries
Crepusculous

Webster's Dictionary

(1):

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

(2):

(a.) Flying in the twilight or evening, or before sunrise; - said certain birds and insects.

Bibliography Information
Webster, Noah. Entry for 'Crepusculous'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​c/crepusculous.html. 1828.