diurnal
Happening or occurring during daylight, or primarily active during that time.
Example
“Most birds are diurnal.”
Other meanings
Said of a flower that is open, or releasing its perfume during daylight hours, but not at night.
Having a daily cycle that is completed every 24 hours, usually referring to tasks, processes, tides, or sunrise to sunset; circadian.
Related words
- undiurnal
- bidiurnal
- diurnal active photolocation
- diurnal aberration
- diurnal arc
- diurnalist
- diurnality
- diurnally
- diurnalness
- diurnal motion
- equidiurnal
- intradiurnal
Word history
From Latin "diurnālis".
Where this comes from
This definition is adapted from “diurnal” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.