'Echinoderm' definitions:
Definition of 'echinoderm'
(from WordNet)
noun
Marine invertebrates with tube feet and five-part radially symmetrical bodies
Definition of 'Echinoderm'
From: GCIDE
- Echinoderm \E*chin"o*derm`\, n. (Zo["o]l.) One of the Echinodermata. [1913 Webster]