Library / English Dictionary

DIURNAL

Pronunciation (US):

(GB):

 I. (adjective) 

Sense 1

Meaning:

Of or belonging to or active during the day

Example:

diurnal and nocturnal offices

Classified under:

Adjectives

Domain category:

biological science; biology (the science that studies living organisms)

Antonym:

nocturnal (belonging to or active during the night)

Sense 2

Meaning:

Having a daily cycle or occurring every day

Example:

diurnal rotation of the heavens

Classified under:

Adjectives

Similar:

periodic; periodical (happening or recurring at regular intervals)

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