/ Dictionary / Index N nicotinism: Meaning and Definition of Find definitions for: nic•o•tin•ism Pronunciation: (nik'u-tē-niz"um, -ti-, nik"u-tē'niz-), [key] — n. a pathological condition caused by excessive use of tobacco, and characterized by depression of the central and autonomic nervous systems; nicotine poisoning. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nicotinic acid nicotinize Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language