Main Entry: situs in·ver·sus Pronunciation: -in-'v&r-s&s Function: noun : a congenital abnormality characterized by lateraltransposition of the viscera (as of the heart or the liver)
situs inversus situs in·ver·sus (ĭn-vûr'səs) n. A congenital condition in which the organs of the viscera are transposed through the sagittal plane so that the heart, for example, is on the right side of the body. Also called visceral inversion.