[ si-roh-suh, -zuh ]
/ sɪˈroʊ sə, -zə /

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

British Dictionary definitions for serosa


/ (sɪˈrəʊsə) /


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.