Word.ws English Dictionary

equidiurnal

/ˌɛkwɪdaɪˈɜː(ɹ)nəl/

equidiurnal adjective: pertaining to the time of equal day and night; applied to the equinoctial line.

Adjective

equidiurnal (not comparable)

  1. Pertaining to the time of equal day and night; applied to the equinoctial line.
    • The circle which the sun describes in his diurnal motion, when the days and nights are equal, the Greeks called the equidiurnal1837, William Whewell, History of the Inductive Sciences

Origin of equidiurnal

From equi- + diurnal.

Questions about equidiurnal

What does equidiurnal mean?
Equidiurnal means pertaining to the time of equal day and night; applied to the equinoctial line.
What part of speech is equidiurnal?
Equidiurnal is an adjective.
How do you pronounce equidiurnal?
Equidiurnal is pronounced /ˌɛkwɪdaɪˈɜː(ɹ)nəl/.

Words near equidiurnal in the dictionary

  1. equidistributes
  2. equidistributing
  3. equidistribution
  4. equidistributional
  5. equidistributions
  6. equidiurnal
  7. equidivision
  8. equidivisions
  9. equidominance
  10. equidominant
  11. equids

Source and license

Adapted from Wiktionary: equidiurnal (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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