/ Dictionary / Index R rotproof: Meaning and Definition of Find definitions for: rot•proof Pronunciation: (rot'prf"), [key] — adj. resistant to rotting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rototiller rotte Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language