Part of speech: adjective
Origin: Latin, mid 17th century
Of or pertaining to twilight
Active in twilight or evening, as with certain animals
Examples of Crepuscular in a sentence
"Crepuscular animals tend to move around in the period between day and night."
"The crepuscular hour is my favorite, when the sky turns deep red and purple and the noise of the day quiets to a whisper."
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Many animals are crepuscular, meaning most active at twilight and dawn, including some you might not know. Deer, rabbits, bears, skunks, bobcats, and even possums are generally considered to be crepuscular.
Did you Know?
Crepuscular is an extremely medical-sounding word for something as artful and lovely as the waning hours of day, but it comes directly from the Latin word crepusculum, meaning twilight.