/ Dictionary / Index R rudderstock: Meaning and Definition of Find definitions for: rud•der•stock Pronunciation: (rud'ur-stok"), [key] — n. Naut. the vertical member at the forward edge of a rudder, hinged at the sternpost and attached to the helm or steering gear. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rudderstock (Thesaurus) rudderpost ruddevator 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