[si-roh-suh, -zuh]

noun, plural se·ro·sas, se·ro·sae [si-roh-see, -zee] /sɪˈroʊ si, -zi/.

Embryology, Zoology.
  1. the chorion.
  2. a similar membrane in insects and other lower invertebrates.

Origin of serosa

1885–90; < New Latin serōsa, feminine of serōsus, equivalent to Latin ser(um) serum + -ōsus -ose1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for serosa

Historical Examples of serosa

British Dictionary definitions for serosa



another name for serous membrane
one of the thin membranes surrounding the embryo in an insect's egg

Word Origin for serosa

C19: from New Latin, from serōsus relating to serum
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

Medicine definitions for serosa


[sĭ-rōsə, -zə]

n. pl. se•ro•sas

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.