/ Dictionary / Index R rototiller: Meaning and Definition of Find definitions for: ro•to•till•er Pronunciation: (rō'tu-til"ur), [key] — n. a motorized device having spinning blades perpendicular to the ground and arranged like spokes, used for tilling soil. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rototill rotproof Related Content Daily Word Quiz: pudgy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language