Found 2 items, similar to echinoderm.
English → English (WordNet) Definition: echinoderm echinoderm n : marine invertebrates with tube feet and calcite-covered five-part radially symmetrical bodies
English → English (gcide) Definition: Echinoderm Echinoderm \E*chin"o*derm`\, n. (Zo["o]l.) One of the Echinodermata. [1913 Webster]