1. The rounded moulding forming the bell of the capital of the Grecian Doric style, which is of a peculiar elastic curve.
  2. The quarter-round moulding (ovolo) of the Roman Doric style.
  3. The egg-and-anchor or egg-and-dart moulding, because often identified with the Roman Doric capital.

The above text is a snippet from Wiktionary: echinus
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!