[dee-fuhn-bak-ee-uh, -bah-kee-uh]
any of various plants belonging to the genus Dieffenbachia, of the arum family, native to tropical America, often cultivated as houseplants for their decorative foliage.
Compare dumb cane.

< Neo-Latin (1829), named after Ernst Dieffenbach (1811–55), German naturalist; see -ia

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World English Dictionary
dieffenbachia (ˌdiːfənˈbækɪə)
any plant of the tropical American evergreen perennial genus Dieffenbachia, some species of which are grown as pot plants for their handsome variegated foliage. The plants are poisonous and the sap is extremely acrid: family Araceae
[named after Ernst Dieffenbach (died 1855), German horticulturist]

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Example sentences
Dieffenbachia is a type of house plant with large, colorful leaves.
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