Ophiuridea

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Ophiurioidea \O`phi*u`ri*oi"de*a\, Ophiuroidea
  \O`phi*u*roi"de*a\, n. pl. [NL., fr. Gr. 'o`fis serpent + 'oyra`
     tail + e'i^dos 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}.
     [1913 Webster]