[ ih-kahy-nuh s ]
/ ɪˈkaɪ nəs /

noun, plural e·chi·ni [ih-kahy-nahy] /ɪˈkaɪ naɪ/.

any sea urchin of the genus Echinus.
  1. an ovolo molding, especially one having an outline with several radii or one carved with an egg-and-dart pattern.
  2. the prominent circular molding supporting the abacus of a Doric or Tuscan capital.
  3. Also called cymatium. the circular molding, usually carved with an egg-and-dart pattern, forming part of an Ionic capital between the volutes and under the balteus.

Nearby words

  1. echinococcus cyst,
  2. echinoderm,
  3. echinodermatous,
  4. echinoid,
  5. echinulate,
  6. echium,
  7. echiurid,
  8. echiuroid,
  9. echo,
  10. echo boomer

Origin of echinus

1325–75; Middle English < Latin < Greek echînos hedgehog, sea urchin Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for echinus

British Dictionary definitions for echinus


/ (ɪˈkaɪnəs) /

noun plural -ni (-naɪ)

architect an ovolo moulding between the shaft and the abacus of a Doric column
any of the sea urchins of the genus Echinus, such as E. esculentus (edible sea urchin) of the Mediterranean

Word Origin for echinus

C14: from Latin, from Greek ekhinos

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012