/ Dictionary / Index S situs inversus: Meaning and Definition of Find definitions for: si'tus in•ver'sus Pronunciation: (in-vûr'sus), [key] — Med. Med. a congenital defect in which an organ is on the side opposite from its normal position. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. situs situs picketing 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