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adj. Relating to or occurring in a 24-hour period; daily.

adj. Occurring or active during the daytime rather than at night: diurnal animals.

adj. Botany Opening during daylight hours and closing at night.

n. A book containing all the offices for the daily canonical hours of prayer except matins.

n. Archaic A diary or journal.

n. Archaic A daily newspaper.

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

adj. Said of a flower open, or releasing its perfume during daylight hours, but not at night.

adj. Having a daily cycle that is completed every 24 hours, usually referring to tasks, processes, tides, or sunrise to sunset.

adj. Done once every day; daily, quotidian.

adj. Published daily.

n. A flower that opens only in the day.

n. A book containing canonical offices performed during the day, hence not matins.

n. A diary or journal.

n. A daily news publication.

adj. Relating to the daytime; belonging to the period of daylight, distinguished from the night; -- opposed to nocturnal

adj. Daily; recurring every day; performed in a day; going through its changes in a day; constituting the measure of a day

adj. Opening during the day, and closing at night; -- said of flowers or leaves.

adj. Active by day; -- applied especially to the eagles and hawks among raptorial birds, and to butterflies (Diurna) among insects.

n. A daybook; a journal.

n. A small volume containing the daily service for the “little hours,” viz., prime, tierce, sext, nones, vespers, and compline.

n. A diurnal bird or insect.

Of or belonging to day; pertaining to the daytime; belonging to the period of daylight, as distinguished from the night: opposed to nocturnal: as, diurnal heat; diurnal hours; diurnal habits, as of an animal.

Daily; happening every day: as, a diurnal task.

Performed in or occupying one day; lasting but for one day; ephemeral.

Constituting the measure of a day, either on the earth or one of the other planets: as, the diurnal revolution of the earth, or of Mars or Jupiter.

Characterized by some change or peculiarity which appears and disappears with the daytime,

n. A day-book; a diary; a journal.

n. A daily newspaper.

n. A Roman Catholic service-book containing the offices for the daily hours of prayer.

n. In ornithology, a diurnal bird of prey.

n. In entomology, one of the Diurna.

adj. of or belonging to or active during the day

adj. having a daily cycle or occurring every day

"Apparently, McLeanian logic tells us that the rotation of the earth also explains the seasons, considering how well it correlates with the short-term diurnal variation..."

periodical    periodic   

diurnal motion of a planet    diurnal inequality    diurnal arc    diurnal circle    diurnal aberration of the fixed stars   

daily    daybook    journal    dail    circadian   

colonel    eternal    external    fraternal    infernal    internal    journal    kernel    maternal    nocturnal   

ecbolic    insectivorous    cyclical    two-week    seasonal    menstrual    circadian    repetitive    three-month    migratory