mucous membrane

noun
a lubricating membrane lining an internal surface or an organ, as the alimentary, respiratory, and genitourinary canals.

Origin:
1805–15

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To mucous membrane
Collins
World English Dictionary
mucous membrane
 
n
Also called: mucosa a mucus-secreting membrane that lines body cavities or passages that are open to the external environment
 
mucomembranous
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

mucous membrane n.
A membrane lining all body passages that communicate with the exterior, such as the respiratory, genitourinary, and alimentary tracts, and having cells and associated glands that secrete mucus. Also called mucosa.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
mucous membrane   (my'kəs)  Pronunciation Key 
Any of the membranes lining the passages of the body, such as the respiratory and digestive tracts, that open to the outside. Cells in the mucous membranes secrete mucus, which lubricates the membranes and protects against infection.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Cultural Dictionary
mucous membrane [(myooh-kuhs)]

The membrane that lines passageways and cavities in the body that lead to the outside, such as the mouth, gastrointestinal tract, nose, vagina, and urethra. These membranes are equipped with glands that secrete mucus.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Encyclopedia Britannica
Encyclopedia

mucous membrane

membrane lining bodily cavities and canals that lead to the outside, chiefly the respiratory, digestive, and urogenital tracts. Mucous membranes line many tracts and structures of the body, including the mouth, nose, eyelids, windpipe and lungs, stomach and intestines, and the ureters, urethra, and urinary bladder. The membranes vary in structure, but they all have a surface layer of epithelial cells over a deeper layer of connective tissue. They are called mucous because they contain cells that secrete mucin, a mucopolysaccharide that is the principal constituent of mucus.

Learn more about mucous membrane with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Example sentences
Together they provide a framework for the vocal folds, flaps of mucous membrane
  attached to muscles either side of the larynx.
The inner surface of the cricoid cartilage is smooth, and lined by mucous
  membrane.
It is lined by mucous membrane continuous above with that of the pharynx and
  below with that of the trachea.
It lies between the mucous membrane and muscular structure of the lip.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature