Diurnal
Diurnal [1]
(1): ( a.) Opening during the day, and closing at night; - said of flowers or leaves.
(2): ( a.) A daybook; a journal.
(3): ( a.) Active by day; - applied especially to the eagles and hawks among raptorial birds, and to butterflies (Diurna) among insects.
(4): ( a.) A small volume containing the daily service for the "little hours," viz., prime, tierce, sext, nones, vespers, and compline.
(5): ( a.) Relating to the daytime; belonging to the period of daylight, distinguished from the night; - opposed to nocturnal; as, diurnal heat; diurnal hours.
(6): ( 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.
(7): ( a.) A diurnal bird or insect.
