/ Dictionary / Index R R.C.S.: Meaning and Definition of Find definitions for: R.C.S. Pronunciation: [key] Royal College of Surgeons. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rcpt. Rct Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language