different between diurnal vs diurnalness

English

Etymology

From Latin diurn?lis, from di?s (“day”). Doublet of journal.

Pronunciation

• (UK) IPA^(key): /da????n??/
• (US) IPA^(key): /da???.n?l/

• Rhymes: -??(r)n?l

Adjective

diurnal (comparative more diurnal, superlative most diurnal)

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

   Most birds are diurnal.

   • 1972, Laurence Monroe Klauber, Rattlesnakes: Their Habits, Life Histories, and Influence on Mankind, Volume 1

     However, in general, lizards are more diurnal than rattlers, which may be one of the reasons why young rattlers are more diurnal than adults.
2. (botany) Said of a flower open, or releasing its perfume during daylight hours, but not at night.
3. Having a daily cycle that is completed every 24 hours, usually referring to tasks, processes, tides, or sunrise to sunset; circadian.
4. (uncommon) Done once every day; daily, quotidian.
5. (archaic) Published daily.

Quotations

• For quotations using this term, see Citations:diurnal.

Synonyms

• (having a daily cycle): circadian (biology)

Antonyms

• (happening or active during the day): nocturnal, nightly
• (active or open during the day): nocturnal

Coordinate terms

• (active or open during the day): crepuscular

Derived terms

Translations

Noun

diurnal (plural diurnals)

1. A flower that opens only in the day.
2. (Catholicism) A book containing canonical offices performed during the day, hence not matins.
3. (archaic) A diary or journal.
4. (archaic) A daily news publication.

Translations

English

Etymology

diurnal +? -ness

Noun

diurnalness (uncountable)

1. (rare) The quality of being diurnal.