on·cid·i·um /ɑnˈsɪdiəm, ɑŋˈkɪ-/
On·cid·i·um n. Bot. A genus of tropical orchidaceous plants, the flower of one species of which (Oncidium Papilio) resembles a butterfly.
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oncidium
n : any orchid of the genus Oncidium: characterized by slender
branching sprays of small yellow and brown flowers; often
grown as houseplants [syn: dancing lady orchid, butterfly
plant, butterfly orchid]