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A 3rd century Roman mosaic containing images of the zodiac.


Borrowed from Ancient Greek ζῳδῐᾰκός (zōidiakós) κύκλος (kúklos, little animal cycle).


  • (Classical) IPA(key): /zoːˈdi.a.kus/, [zoːˈd̪i.a.kʊs]
  • (Ecclesiastical) IPA(key): /d͡zoˈdi.a.kus/, [d͡zɔˈd̪iː.a.kus]
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zōdiacus (feminine zōdiaca, neuter zōdiacum); first/second-declension adjective

  1. of or pertaining to the zodiac


First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative zōdiacus zōdiaca zōdiacum zōdiacī zōdiacae zōdiaca
Genitive zōdiacī zōdiacae zōdiacī zōdiacōrum zōdiacārum zōdiacōrum
Dative zōdiacō zōdiacō zōdiacīs
Accusative zōdiacum zōdiacam zōdiacum zōdiacōs zōdiacās zōdiaca
Ablative zōdiacō zōdiacā zōdiacō zōdiacīs
Vocative zōdiace zōdiaca zōdiacum zōdiacī zōdiacae zōdiaca


zōdiacus m (genitive zōdiacī); second declension

  1. the zodiac
    • 1581, Christophori Clavii Bamburgensis ex Societate Iesu in Sphaeram Ioanis de Sacro Bosco Commentarius, p. 59 [1]
      Diuturna observatione deprehenderunt astronomi, caelos inferiores non moveri ab occasu in ortum super polos mundi, et per circulum aequinoctialem, sed super polos distinctos, nempe super zodiaci, et per circulum zodiacum.
      By long observation, astronomers have discovered that the lower heavens do not move from west into the east upon the world's poles and through the circle of the equinox, but upon different poles, specifically the poles of the zodiac, and through the zodiac circle.


Second-declension noun.

Case Singular Plural
Nominative zōdiacus zōdiacī
Genitive zōdiacī zōdiacōrum
Dative zōdiacō zōdiacīs
Accusative zōdiacum zōdiacōs
Ablative zōdiacō zōdiacīs
Vocative zōdiace zōdiacī