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See also: Echinus


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Particularly: "Architectural senses, please?"


From Latin echīnus (hedgehog; sea urchin), from Ancient Greek ἐχῖνος (ekhînos).



echinus (plural echinuses or echini)

  1. A sea urchin.
    • 1929, Sir Arthur Conan Doyle, When the World Screamed[1]:
      'It is a sea-urchin - a common echinus. Nature repeats itself in many forms regardless of the size. This echinus is a model, a prototype, of the world.'
  2. (architecture) The rounded moulding forming the bell of the capital of the Grecian Doric style, which is of a peculiar elastic curve.
  3. (architecture) The quarter-round moulding (ovolo) of the Roman Doric style.
  4. (architecture) The egg-and-anchor or egg-and-dart moulding, because often identified with the Roman Doric capital.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “echinus” in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)



echīnus (1, sea urchin)
echīnus (2, hedgehog)


From Ancient Greek ἐχῖνος (ekhînos).


  • (Classical) IPA(key): /eˈkʰiː.nus/, [ɛˈkʰiːnʊs̠]
  • (Ecclesiastical) IPA(key): /eˈki.nus/, [ɛˈkiːnus]
  • (file)


echīnus m (genitive echīnī); second declension

  1. a sea urchin, especially the edible kind
  2. a hedgehog
  3. the prickly husk of a chestnut
  4. a rinsing bowl, especially of copper
  5. (architecture) an ornament under the chapiter of an Ionic or Doric column


Second-declension noun.

Case Singular Plural
Nominative echīnus echīnī
Genitive echīnī echīnōrum
Dative echīnō echīnīs
Accusative echīnum echīnōs
Ablative echīnō echīnīs
Vocative echīne echīnī


Derived terms[edit]


  • Translingual: Echinus
  • English: echinus
  • Spanish: equino


  • echinus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • echinus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • echinus in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
  • echinus in The Perseus Project (1999) Perseus Encyclopedia[2]
  • echinus in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
  • echinus in William Smith, editor (1854, 1857) A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly
  • echinus in William Smith et al., editor (1890) A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin