/ Dictionary / Index W wonder drug: Meaning and Definition of Find definitions for: won'der drug" Pronunciation: [key] a drug, usually recently discovered or developed, noted for its startling curative effect, as an antibiotic or sulfa drug. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wonder child wonderful Related Content Daily Word Quiz: magnanimous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language