Definition of "serosa" [serosa]

• A serous membrane, especially one that lines the pericardial, pleural, and peritoneal cavities, enclosing their contents. (noun)
• The chorion of a bird or reptile embryo. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The tunica serosa uteri covers the internal reproductive organs in women."
• "Indusium: the case made by an insect larva: a membranous layer of the embryo of Locustidae below the serosa."
• "The serous coat (tunica serosa) is derived from the peritoneum; it invests the fundus and the whole of the intestinal surface of the uterus; but covers the vesical surface only as far as the junction of the body and cervix."