Diurnal Definition

dī-ûrnəl
adjective
Occurring each day; daily.
Webster's New World
Of, done, or happening in the daytime.
Webster's New World
Active in the daytime.
Webster's New World
Opening in the daytime and closing at night.
Webster's New World

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

Wiktionary
Antonyms:
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noun

A flower that opens only in the day.

Wiktionary
A service book containing prayers for the daytime canonical hours and for compline.
Webster's New World
A diary or journal.
American Heritage
A daily newspaper.
Webster's New World

Other Word Forms of Diurnal

Noun

Singular:
diurnal
Plural:
diurnals

Origin of Diurnal

  • Middle English from Late Latin diurnālis from Latin diurnus from diēs day dyeu- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin diurnālis, from diēs (“day”). Cognate with journal.

    From Wiktionary

Diurnal Sentence Examples

  • Take a base attached to the centre of the earth, but without this diurnal rotation.

  • The species of the genus Lemur are diurnal, and may be recognized by the length of the muzzle, and the large tufted ears.

  • Annual and Diurnal Variations.-At Wolfenbi ttel, Elster and Geitel found A vary but little with the season.

  • The diurnal mountain winds are very strongly marked on the Himalaya, where they probably are the most active agents in determining the precipitation of rain along the chain - the monsoon currents, as before stated, not penetrating among the mountains.

  • A more considerable defect is due to the earth having a diurnal rotation relative to a Newtonian base, and this is never wholly ignored.

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Words Starting With

DDIDIU

Words Ending With

LALNAL

Unscrambles

diurnal

Words Starting With D and Ending With L

Starts With D & Ends With LStarts With DI & Ends With LStarts With D & Ends With AL

Word Length

7 Letter Words7 Letter Words Starting With D7 Letter Words Ending With L