Source : Webster's Revised Unabridged Dictionary (1913)

Nicotiana \Ni*co`ti*a"na\, 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}.

Source : WordNet®

Nicotiana
     n : American and Asiatic aromatic herbs and shrubs with viscid
         foliage [syn: {genus Nicotiana}]