‖ metroperitonitisPath.|ˌmiːtrəʊpɛrɪtəʊˈnaɪtɪs| [mod.L., f.Gr. µήτρα womb + peritonitis.] Inflammation of the uterus and the peritoneum. 1845Day tr.Simon's Anim.Chem. I. 270. 1859Todd's Cycl.Anat. V. 688/1 The pathological conditions of the serous coat are chiefly those of..metroperitonitis.