Ophiurioidea
O`phi`u`ri`oi´de`a
| n. pl. | 1. | (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's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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