Definition:
1. of, resembling, or relating to twilight.
<em> Zoology</em>
2. (of an animal) appearing or active at night.
Synonyms:
stygian, tenebrific, tenebrous, unlit.
Example sentences:
1. The dim <em>crepuscular </em>light of the crepuscular sky.
2. Many familiar mammal species are <em>crepuscular</em>, including some bats, hamsters, housecats, stray dogs, rabbits, ferrets, and rats.