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[si-roh-suh, -zuh] /sɪˈroʊ sə, -zə/
noun, plural serosas, serosae
[si-roh-see, -zee] /sɪˈroʊ si, -zi/ (Show IPA)
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 Dictionary, © Random House, Inc. 2018.
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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
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
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serosa in Medicine

serosa se·ro·sa (sĭ-rō'sə, -zə)
n. pl. se·ro·sas or se·ro·sae (-sē, -zē)

  1. See serous membrane.

  2. 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.
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