The Collaborative International Dictionary of English v.0.48:

Gloriosa \Glo`ri*o"sa\, n. [Nl., fr. L. gloriosus. See
   Glorious.] (Bot.)
   A genus of climbing plants with very showy lilylike blossoms,
   natives of India.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gloriosa
    n 1: any plant of the genus Gloriosa of tropical Africa and
         Asia; a perennial herb climbing by means of tendrils at
         leaf tips having showy yellow to red or purple flowers; all
         parts are poisonous [syn: gloriosa, glory lily,
         climbing lily, creeping lily, Gloriosa superba]