Diurnal
/daɪˈɜːnəɫ/
Last Updated: January 2, 2026 at 12:30 PM
Scrabble:8 ptsWWF:11 pts7 letters
Definition of Diurnal
noun
adjective
- Happening or occurring during daylight, or primarily active during that time.
"Most birds are diurnal."
- Said of a flower 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.
- Done once every day; daily, quotidian.
- Published daily.
Anagrams of Diurnal
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Synonyms & Antonyms
SYNONYMS
circadian
ANTONYMS
nocturnalnightly