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1 definition found

From: Webster's Revised Unabridged Dictionary (1913)

 O·phi·u·ri·oi·de·a O·phi·u·roi·de·a n. pl.  Zool. A class of star-shaped echinoderms having a disklike body, with slender, articulated arms, which are not grooved beneath and are often very fragile; -- called also Ophiuroida and Ophiuridea. See Illust. under Brittle star.
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