radiata

'radiata' in Webster

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In depth article on radiata found in wikipedia.


||Ra`di*a"ta   (-ā"t&adot;),
n. pl. [NL., fr. radiatus, p. p. See Radiate.]
 (Zoöl.) An extensive artificial group of invertebrates, having all the parts arranged radially around the vertical axis of the body, and the various organs repeated symmetrically in each ray or spheromere.
&fist; It includes the c&oelig;lenterates and the echinoderms. Formerly, the group was
supposed to be a
natural one, and was considered one of the grand divisions of the animal kingdom.

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