equidiurnal

English

Etymology

equi- +‎ diurnal

Pronunciation
  • IPA(key): /ˌɛkwɪdaɪˈɜː(ɹ)nəl/, /ˌiːkwɪdaɪˈɜː(ɹ)nəl/

Adjective

equidiurnal (not comparable)

  1. Pertaining to the time of equal day and night; applied to the equinoctial line.
    • 1837, William Whewell, History of the Inductive Sciences:
      The circle which the sun describes in his diurnal motion, when the days and nights are equal, the Greeks called the equidiurnal

References

equidiurnal in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913

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