diurnal🔊

Happening or occurring during daylight, or primarily active during that time.

(botany) 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.

(uncommon) Done once every day; daily, quotidian.

(archaic) Published daily.

A flower that opens only in the day.

(Catholicism) A book containing canonical offices performed during the day, hence not matins.

(archaic) A diary or journal.

(archaic) A daily news publication.