Ophiuroidea is a 11 letter word which starts with the letter O and ends with the letter A for which we found 1 definitions.
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(n. pl.) 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. |