Found 1 items, similar to Asteridea.
English → English (gcide) Definition: Asteridea Asterioidea \As*te`ri*oid"e*a\, ||Asteridea \As`ter*id"e*a\, n. pl. [NL., fr. Gr. 'asteri`as + -oid. See Asterias.] (Zo["o]l.) A class of Echinodermata including the true starfishes. The rays vary in number and always have ambulacral grooves below. The body is star-shaped or pentagonal. [1913 Webster] ||