O`phi*u`ri*oi"de*a (?), O`phi*u*roi"de*a (?), n. pl. [NL., fr. Gr. serpent + tail + form.] 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.


© Webster 1913.

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