Definition of diurnal
Definition of diurnal
- diurnal Adjective Happening or occurring during daylight, or primarily active during that time.
- diurnal Adjective Said of a flower open, or releasing its perfume during daylight hours, but not at night.
- diurnal Adjective Having a daily cycle that is completed every 24 hours, usually referring to tasks, processes, tides, or sunrise to sunset.
- diurnal Adjective Done once every day; daily, quotidian.
- diurnal Adjective Published daily.
- diurnal Noun A flower that opens only in the day.
- diurnal Noun A book containing canonical offices performed during the day, hence not matins.
- diurnal Noun A diary or journal.
- diurnal Noun A daily news publication.