| Crinoidea | ‖n. pl. [ NL., from Gr. kri`non lily + -oid: cf. F. crinoïde. ] (Zool.) A large class of Echinodermata, including numerous extinct families and genera, but comparatively few living ones. Most of the fossil species, like some that are recent, were attached by a jointed stem. See Blastoidea, Cystoidea, Comatula. [ 1913 Webster ] |