echinus

American  

[ih-kahy-nuhs] / ɪˈkaɪ nəs /

noun

plural

echini

1. any sea urchin of the genus Echinus.

2. Architecture.

   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.

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echinus British  

/ ɪˈkaɪnəs /

noun

1. architect an ovolo moulding between the shaft and the abacus of a Doric column

2. any of the sea urchins of the genus Echinus, such as E. esculentus ( edible sea urchin ) of the Mediterranean

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Etymology

Origin of echinus

1325–75; Middle English < Latin < Greek echînos hedgehog, sea urchin