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SEROSA

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se⋅ro⋅sa

[si-roh-suh, -zuh]
–noun, plural -sas, -sae [-see, -zee] .
1. Embryology, Zoology.
a. the chorion.
b. a similar membrane in insects and other lower invertebrates.
2. serous membrane.

Origin:
1885–90; < NL serōsa, fem. of serōsus, equiv. to L ser(um) serum + -ōsus -ose 1

serous membrane

–noun Anatomy, Zoology.
any of various thin membranes, as the peritoneum, that line certain cavities of the body and exude a serous fluid.
Also called serosa.


Origin:
1865–70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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se·ro·sa   (sĭ-rō'sə, -zə)   
n.   pl. se·ro·sas or se·ro·sae (-sē, -zē)
  1. A serous membrane, especially one that lines the pericardial, pleural, and peritoneal cavities, enclosing their contents.

  2. The chorion of a bird or reptile embryo.


[New Latin serōsa, feminine of serōsus, serous, from Latin serum, serum.]
se·ro'sal (-zəl) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: se·ro·sa
Pronunciation: s&-'rO-z&
Function: noun
Inflected Form: plural se·ro·sas also se·ro·sae /-zE/
: a usually enclosing serous membrane serosa>

Main Entry: serous membrane
Function: noun
: any of various thin membranes (as the peritoneum, pericardium, or pleurae) that consist of a single layer of thin flatmesothelial cells resting on a connective-tissue stroma, secrete a serous fluid, and usually line bodily cavities or enclose the organs contained in such cavities —compare MUCOUS MEMBRANE
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

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.

serous membrane n.
A thin, two-part membrane that secretes a serous fluid and lines a closed body cavity, covering the organs that lie within that cavity. Also called serosa, serous tunic.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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