diurnals

Active by day

Diurnals are creatures active during daylight hours, as opposed to nocturnal ones.

The term appears in natural history writing: Diurnals like butterflies and most birds rest at night.

In Catholic tradition, a diurnal is a breviary containing daytime prayers, excluding those for night offices.

zoological

butterflies

Fluttering insects or nervousness

songbirds · primates · squirrels · lizards · behavior · foraging · basking · activity · crepuscular · waking

astronomical

ephemeris

Celestial body position chart

tables · planetary · calculations · navigation · coordinates · sunrise · sunset · declination · transit · meridian

liturgical

breviary

Daily prayer compilation

lauds · vespers · compline · canonical · devotions · psalter · office · monastic · chant · antiphon

botanical

flowers

Plant reproductive structures

sunflower · daisy · marigold · hibiscus · petals · pollination · blooming · unfurling · photosynthesis · daylight

Opposites
activity period

diurnalsnocturnals

Animals active at night

nocturnal animals · night creatures · nocturnal species · nightjars · owls

publication frequency

diurnalsweeklies

Recurring seven-day publications

monthlies · periodicals · annuals · quarterlies · biweeklies

Family

diurnal, diurnally

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