from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A thin membrane lining a closed body cavity and moistened with a serous fluid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A thin membrane that secretes serum lining an internal body cavity, such as the peritoneum, the pericardium, and the pleura.
from the GNU version of the Collaborative International Dictionary of English
- adj. See under Membrane.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a thin membrane lining the closed cavities of the body; has two layers with a space between that is filled with serous fluid
Sorry, no etymologies found.