Dictionary
cre•pus•cu•lar
Pronunciation: (kri-pus'kyu-lur), [key]—
adj.
1. of, pertaining to, or resembling twilight; dim; indistinct.
2. Zool.appearing or active in the twilight, as certain bats and insects.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.