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Webster 1913 Edition
Pleuroperitoneum
Pleuˊro-perˊi-to-ne′um
,Noun.
[
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.
☞ Peritoneum is now often used in the sense of pleuroperitoneum, the pleuræ being regarded as a part of the peritoneum, when the body cavity is undivided.