Akademik

diurnal
1. adjective /daɪˈɜː.nəl,daɪˈɝ.nəl/
a) Happening or occurring during daylight, or primarily active during that time.

Most birds are diurnal.

b) Said of a flower open, or releasing its perfume during daylight hours, but not at night.
Syn: circadian
Ant: nocturnal, nightly
2. noun /daɪˈɜː.nəl,daɪˈɝ.nəl/
a) A flower that opens only in the day.
b) A book containing canonical offices performed during the day, hence not matins.

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