Breadcrumb Home > Dictionary > Index T tobacco: Meaning and Definition of Find definitions for: to•bac•co Pronunciation: (tu-bak'ō), [key] — pl. -cos, -coes. any of several plants belonging to the genus Nicotiana, of the nightshade family, esp. one of those species, as N. tabacum, whose leaves are prepared for smoking or chewing or as snuff. the prepared leaves, as used in cigarettes, cigars, and pipes. any product or products made from such leaves. any of various similar plants of other genera. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tobacco (Thesaurus) tob tobacco aphid TrendingHere are the facts and trivia that people are buzzing about. Who's Who in the "Lord of the Rings" Roman Catholic Church Hierarchy Current Events This Week: March 2023 42 Top Western Movie Quotes Slaves in the Family User's Guide to Environmental Language ✖ Related Content Daily Word Quiz: tangential Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language