dieffenbachia is a type of house plant with large, colorful leaves.
British Dictionary definitions for dieffenbachia
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