Medical Definition of Asteridea
1.
A class of Echinodermata including the true starfishes. The rays vary in number and always have ambulacral grooves below. The body is starshaped or pentagonal.
Origin: NL, fr. Gr. See Asterias.
Source: Websters Dictionary
(01 Mar 1998)
Lexicographical Neighbors of Asteridea
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