What's the difference between
and
Enter two words to compare and contrast their definitions, origins, and synonyms to better understand how those words are related.

Diurnal vs Nondiurnal - What's the difference?

diurnal | nondiurnal |

As adjectives the difference between diurnal and nondiurnal

is that diurnal is happening or occurring during daylight, or primarily active during that time while nondiurnal is not diurnal.

As a noun diurnal

is a flower that opens only in the day.

diurnal

English

Adjective

(-)
  • Happening or occurring during daylight, or primarily active during that time.
    • Most birds are diurnal .
  • * Shakespeare
    • Ere twice the horses of the sun shall bring / Their fiery torcher his diurnal ring.
  • (botany) Said of a flower open, or releasing its perfume during daylight hours, but not at night.
  • Having a daily cycle that is completed every 24 hours, usually referring to tasks, processes, tides, or sunrise to sunset.
  • (uncommon) Done once every day; daily, quotidian.
  • (archaic) Published daily.

    • Quotations

    * (English Citations of "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

    Noun

    (en noun)
  • A flower that opens only in the day.
  • (Catholicism) A book containing canonical offices performed during the day, hence not matins.
  • (archaic) A diary or journal.
  • * 1663 ,
    • He was by birth, some authors write, / A Russian, some a Muscovite, / And 'mong the Cossacks had been bred, / Of whom we in diurnals read.
  • (archaic) A daily news publication.

    • nondiurnal

    English

    Adjective

    (-)
  • Not diurnal.