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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 Echinoidea
 海膽綱

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 Ech·i·noi·dea /ˌɛkəˈnɔɪdɪə/ 名詞 複數

From: Webster's Revised Unabridged Dictionary (1913)

 Ech·i·noi·de·a n. pl.  Zoöl. 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. [Written also Echinidea, and Echinoida.]
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From: WordNet (r) 2.0

 Echinoidea
      n : sea urchins and sand dollars [syn: class Echinoidea]