/ni koh'shee ay"neuh, -an"euh, -ah"neuh/ , n.
any plant belonging to the genus Nicotiana, of the nightshade family, esp. one grown for its ornamental value, as flowering tobacco.
[ 1590-1600; herba ) nicotiana Nicot's (herb) (after Jacques Nicot (1530-1600), said to have introduced tobacco into France); see -IAN, -A 2 ]