/ Dictionary / Index R ruddevator: Meaning and Definition of Find definitions for: rud•de•va•tor Pronunciation: (rud'u-vā"tur), [key] — n. Aeron. a control surface functioning both as a rudder and as an elevator. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rudderstock ruddle Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language