/ Dictionary / Index R Redstone: Meaning and Definition of Find definitions for: Red•stone Pronunciation: (red'stōn"), [key] — n. a U.S. surface-to-surface ballistic missile powered by a single rocket engine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. redstart red stuff Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language