Definition:
- (a.) Relating to the daytime; belonging to the period of daylight, distinguished from the night; -- opposed to nocturnal; as, diurnal heat; diurnal hours.
- (a.) Daily; recurring every day; performed in a day; going through its changes in a day; constituting the measure of a day; as, a diurnal fever; a diurnal task; diurnal aberration, or diurnal parallax; the diurnal revolution of the earth.
- (a.) Opening during the day, and closing at night; -- said of flowers or leaves.
- (a.) Active by day; -- applied especially to the eagles and hawks among raptorial birds, and to butterflies (Diurna) among insects.
- (a.) A daybook; a journal.
- (a.) A small volume containing the daily service for the "little hours," viz., prime, tierce, sext, nones, vespers, and compline.
- (a.) A diurnal bird or insect.
Compare diurnal with other words:
diurnal vs. seasonal
diurnal vs. diurnalness
diurnal vs. mobile
diurnal vs. rabbitfish
diurnal vs. gloaming
diurnal vs. hawk
diurnal vs. muscovite
cossack vs. diurnal
diurnal vs. journal
diary vs. diurnal
diurnal vs. office
canonical vs. diurnal
book vs. diurnal
diurnal vs. flower
day vs. diurnal
diurnal vs. nightly
crepuscular vs. diurnal
circadian vs. diurnal
diurnal vs. once
daily vs. diurnal
diurnal vs. quotidian
diurnal vs. sunrise
diurnal vs. sunset
cycle vs. diurnal
diurnal vs. perfume
diurnal vs. open
active vs. diurnal
diurnal vs. occur
daylight vs. diurnal
butterfly vs. diurnal
diurnal vs. nocturnal