/ Dictionary / Index R Rickover: Meaning and Definition of Find definitions for: Rick•o•ver Pronunciation: (rik'ō-vur), [key] 1900–86, U.S. naval officer, born in Poland: helped to develop the nuclear submarine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rickover (Thesaurus) rickey rickrack Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language