Peritoneum

n.

1.

(Anat.) The smooth serous membrane which lines the cavity of the abdomen, or the whole body cavity when there is no diaphragm, and, turning back, surrounds the viscera, forming a closed, or nearly closed, sac.

Noun

1.

peritoneum - a transparent membrane that lines the abdominal cavity in mammals and covers most of the viscera

Pronunciation: (PEH-rih-toh-NEE-um)

The lining of the abdominal cavity.

mesentery, omentum, serosa, serous membrane