/ Dictionary / Index T tobacco budworm: Meaning and Definition of Find definitions for: tobac'co bud"worm Pronunciation: [key] the larva of a noctuid moth, Heliothis virescens, that damages the buds and young leaves of tobacco. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tobacco beetle tobacco heart Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language