- any of various thin membranes, as the peritoneum, that line certain cavities of the body and exude a serous fluid.
Origin of serous membrane
First recorded in 1865–70
Also called serosa.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
- any of the smooth moist delicate membranes, such as the pleura or peritoneum, that line the closed cavities of the body and secrete a watery exudate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- A thin, two-part membrane that secretes a serous fluid and lines a closed body cavity, covering the organs that lie within that cavity.serosa serous tunic
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.