| ophiuroidea | <zoology> A class of star-shaped echinoderms having a disklike body, with slender, articulated arms, which are not grooved beneath and are often very fragile. Synonym: Ophiuroida and Ophiuridea. Origin: NL, fr. Gr. Serpent + tail + form. Source: Websters Dictionary (01 Mar 1998) |
|---|