echinus — English Dictionary

Noun

1. A sea urchin.

   Examples

   '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. The rounded moulding forming the bell of the capital of the Grecian Doric style, which is of a peculiar elastic curve.

3. The quarter-round moulding (ovolo) of the Roman Doric style.

4. The egg-and-anchor or egg-and-dart moulding, because often identified with the Roman Doric capital.

Noun

1. ovolo molding between the shaft and the abacus of a Doric column

   Broader terms

   ovolothumbquarter round