/ Dictionary / Index N nicotiana: Meaning and Definition of Find definitions for: ni•co•ti•a•na Pronunciation: (ni-kō"shē-ā'nu, -an'u, -ä'nu), [key] — n. any plant belonging to the genus Nicotiana, of the nightshade family, esp. one grown for its ornamental value, as flowering tobacco. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nicotiana (Thesaurus) Nicostratus nicotinamide Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language