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mucous membrane
noun
: a membrane rich in mucous glands
specifically
: one that lines body cavities and passages (as of the gastrointestinal or respiratory tract) which communicate directly or indirectly with the outside of the body : mucosa
Pruritus and congestion involving mucous membranes of the eyes, nose, and mouth are frequently observed, and swelling of the lips or tongue may impair swallowing and ventilation. —Bruce S. Bochner et al.
Examples of mucous membrane in a Sentence
Recent Examples on the Web
Even high concentrations of hydrogen peroxide can harm a pet’s skin, mucous membranes, and gastrointestinal tracts.
—Nafeesah Allen, Better Homes & Gardens, 9 Jan. 2025
Gonorrhea is caused by the bacterium Neisseria gonorrhoeae and commonly affects the mucous membranes of the reproductive tract, but can also infect the rectum, throat, and eyes.
—Kevin Lynn, Newsweek, 7 Jan. 2025
Alternatives for Cold Prevention In addition to vitamin C, several other measures can help prevent the common cold:
Maintain adequate hydration: Drinking enough water keeps the mucous membranes wet, reducing the risk of colds and flu.
—Trang Tran, Pharmd, Verywell Health, 16 Dec. 2024
Drink plenty of fluids to avoid dehydration, keep your mucous membranes nice and moist, and loosen all the sticky stuff.
—Keren Landman, Vox, 7 Dec. 2018
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Word History
First Known Use
circa 1771, in the meaning defined above
Time Traveler
The first known use of mucous membrane was
circa 1771
Dictionary Entries Near mucous membrane
Cite this Entry
“Mucous membrane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mucous%20membrane. Accessed 18 Jan. 2025.
Kids Definition
mucous membrane
noun
: a membrane rich in mucous glands
especially
: one lining body passages and cavities (as of the nose or lungs) which connect directly or indirectly with the outside
Medical Definition
mucous membrane
noun
: a moist membranous layer rich in mucous glands that lines body passages and cavities (as of the digestive, respiratory, and genitourinary tracts) which connect directly or indirectly with the exterior, that functions in protection, support, nutrient absorption, and secretion of mucus, enzymes, and salts, and that is composed of epithelium supported below by the lamina propria and sometimes by the muscularis mucosae
called also mucosa
compare serous membraneMore from Merriam-Webster on mucous membrane
Britannica English: Translation of mucous membrane for Arabic Speakers
Britannica.com: Encyclopedia article about mucous membrane
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