Definition for PER-I-TO-NE'UM

PER-I-TO-NE'UM, n. [Gr. περιτοναιον; περι, about, and τονοω, to stretch.]

A thin, smooth, serous membrane investing the whole internal surface of the abdomen, and more or less completely, all the viscera contained in it. – Encyc. Parr.

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