- Embryology, Zoology.
- the chorion.
- a similar membrane in insects and other lower invertebrates.
- serous membrane.
Origin of serosa
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for serosa
Indusium: the case made by an insect larva: a membranous layer of the embryo of Locustidae below the serosa.
Serosa: the outer membrane that envelops the forming embryo, the amnion and the remainder of the egg.
Ventral plate: a thickening of the blastoderm of an egg from which the embryo, but not the amnion or serosa is formed.
- another name for serous membrane
- one of the thin membranes surrounding the embryo in an insect's egg
C19: from New Latin, from serōsus relating to serum
- serous membrane
- The chorion of a bird or reptile embryo.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.