Ni·co·ti·ana ni-.kō-shē-'an-ə n a genus of American and Asian herbs or shrubs of the family Solanaceae that have viscid foliage, tubular flowers, and a many-seeded capsule and that include the cultivated tobacco (N. tabacum)
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Nic·o·ti·a·na (nik″o-she-aґnə) [Jean Nicot de Villemain, 1530–1600, who introduced tobacco chewing to the queen of France] a genus of annual plants of the family Solanaceae, native to tropical America. N. tabaґcum L. and certain other species are sources of tobacco.Medical dictionary. 2011.