- Pleuroperitoneum
- Pleuroperitoneum Pleu`ro*per`i*to*ne"um, n. [Pleuro- +
peritoneum.] (Anat.)
The pleural and peritoneal membranes, or the membrane lining
the body cavity and covering the surface of the inclosed
viscera; the peritoneum; -- used especially in the case of
those animals in which the body cavity is not divided.
[1913 Webster]
Note: Peritoneum is now often used in the sense of pleuroperitoneum, the pleur[ae] being regarded as a part of the peritoneum, when the body cavity is undivided. [1913 Webster]
The Collaborative International Dictionary of English. 2000.