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Thesaurus: ophiurioidea

Alt. of Ophiuroidea

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  1. n. pl. Alt. of Ophiuroidea
  2. A class of class="def-link" href="https://vividlex.com/word/star-shaped">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.