WordNet (r) 3.0 (2006):

butterfly orchid
    n 1: any orchid of the genus Psychopsis: spectacular large
         tiger-striped orchids
    2: any orchid of the genus Oncidium: characterized by slender
       branching sprays of small yellow and brown flowers; often
       grown as houseplants [syn: oncidium, dancing lady orchid,
       butterfly plant, butterfly orchid]
    3: Mexican epiphytic orchid having pale green or yellow-green
       flowers with white purple-veined lip [syn: butterfly
       orchid, butterfly orchis, Epidendrum venosum, Encyclia
       venosa]
    4: orchid of Florida and the Bahamas having showy brightly
       colored flowers; sometimes placed in genus Epidendrum [syn:
       butterfly orchid, Encyclia tampensis, Epidendrum
       tampense]
    5: Mediterranean orchid having usually purple flowers with a
       fan-shaped spotted or striped rose-red lip [syn: butterfly
       orchid, butterfly orchis, Orchis papilionaceae]