noun.
The serous membrane that lines the walls of the abdominal cavity and folds inward to enclose the viscera.
The Century Dictionary and Cyclopedia
noun.
The membrane lining the abdominal cavity and investing its viscera.
noun.
In brachiopods, an investment of the alimentary canal, by which the latter is suspended in the perivisceral cavity as by a mesentery.
noun.
In entomology, the outer coat of the digestive tube of an insect.
the GNU version of the Collaborative International Dictionary of English
noun.
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.