echinoidea

POS

Noun

HYPHEN

Ech=i=noi=de=a

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WORDNET DICTIONARY

Noun echinoidea has 1 sense

echinoidea(n = noun.animal) class echinoidea - sea urchins and sand dollars; Array

is a member of echinodermata, phylum echinodermata

is a kind of class

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CIDE DICTIONARY

echinoidea, n. pl. [NL. See Echinus, and -oid.].

The class Echinodermata which includes the sea urchins. They have a calcareous shell, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid. [1913 Webster]

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