(n) tall erect South American herb with large ovate leaves and terminal clusters of tubular white or pink flowers; cultivated for its leaves, Syn. Nicotiana tabacum
‖prop. n. [ NL. See Nicotian. ] (Bot.) A genus of American and Asiatic solanaceous herbs, with viscid foliage and funnel-shaped blossoms. Several species yield tobacco. See Tobacco. [ 1913 Webster ]