Crepuscular

Pronunciation
/kri-PUH-skuh-lur/
Category
Behavior
Singular
crepuscular
Plural
crepusculars

Definition

Active during twilight, which includes both dawn and dusk.

Etymology

From Latin 'crepusculum', meaning 'twilight'.

Example

Many species of mosquitoes exhibit crepuscular activity, being most active during early morning and late evening hours.

Synonyms

  • Twilight-active

Related Terms

Usage Notes

Crepuscular activity is often an adaptation to avoid the extreme temperatures of midday and to evade predators that are active during full daylight or nighttime.