echinus's Usage Examples:

The capitals are remarkable, inasmuch as the necking immediately below the echinus is decorated with a band of leaves, the arrangement of which varies in different cases.

Amongst the echinoderms crinoids were the most numerous individually, dense submarine thickets of the long-stemmed kinds appear to have flourished in many places where their remains consolidated into thick beds of rock; prominent genera are Cyathocrinus, Woodocrinus, Actinocrinus; sea-urchins, Archaeocidaris, Palaeechinus, 'c.

Synonyms:

quarter round, ovolo, thumb,

Antonyms:

walk,