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3 definitions found
From: DICT.TW English-Chinese Dictionary 英漢字典
 Radiata
 輻射動物
From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典
 radiata
From: Webster's Revised Unabridged Dictionary (1913)
 Ra·di·a·ta n. pl.  Zool. 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.
 Note:It includes the cœlenterates 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.