<procedure> Incision in the wall of a hollow viscus that involves the serosa and muscularis but not the mucosa. ... Origin: serosa 1. + G. Mys, muscle, + tome, a cutting ... (05 Mar 2000) ... 
Type: Term Pronunciation: se′rō-mī-ot′ŏ-mē Definitions: 1. Incision in the wall of a hollow viscus that involves the serosa and muscularis but not the mucosa.