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the slimy protective secretion of the mucous membranes, consisting mainly of mucin
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



in animals and man, the secretion of mucous glands. In amphibians mucus is secreted onto the skin, whereas in invertebrates and other vertebrates it is secreted into the internal cavities of many organs, where it coats the mucous membranes.

Mucus is immunologically and bactericidally active. It protects organs and integumentary tissues from mechanical injuries and facilitates the movement of food along the digestive tract. Certain annelids, mollusks, ascidians, and other animals feed on food particles that adhere to the mucus when water is filtered through it.

Chemically, mucus is a complex mixture of glycoproteins, which account for approximately 40 percent of its dry weight. For example, mucus secreted by gastric and intestinal mucous epithelia is an aqueous solution of acid mucopolysaccharides, which are similar or identical to the mucopolysaccharides of connective tissue, neutral glycoproteins, which contain a large quantity of fucose, and acid glycoproteins, which contain sialic acids. Hyaluronic acid is a major constituent of synovia.

Mucus is important in maintaining cellular fluid and ion balances. In mammals it is a constituent of the developing embryo’s connective tissue, although at birth it is found only in the umbilical cord.


Khimiia uglevodov. Moscow, 1967.
Kretovich, V. L. Osnovy biokhimii rastenii, 5th ed. Moscow, 1971.
Schlegel, H. Obshchaia mikrobiologiia. Moscow, 1972. (Translated from German.)


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A viscid fluid secreted by mucous glands, consisting of mucin, water, inorganic salts, epithelial cells, and leukocytes, held in suspension.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
'Ayan, pati sa kabila (There, as well as on the other side [of your eye area].),' answered Forteza, pointing the locations of the eye boogers.
Was Molly afraid of the booger? She sometimes worried that it might be a rabies vector, but Stella
<BMarco Boogers makes one of English football's most infamous debuts as, seconds after coming on to make his first appearance for West Ham United on August 23, 1995, he is sent off for a dangerous challenge on Manchester United's Gary Neville.
"Yes, now your booger's trying to eat you!" replies his distressed dad.
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his booger box gets bigger." I agreed to only one reference to nasal mucus as "boogers," and that line occurred on page 7.
'I'm sneezing up a storm and I don't want to get boogers on my keyboard.'
If you're like most kids, you love talking about body functions--farts, vomit, pus, feces (more commonly referred to as "poop"), and boogers. Author Jeff Szpirglas explores these revolting topics and more in Gross Universe: Your Guide to Aft Disgusting Things Under the Sun (Maple Tree Press, distributed in the United States by Firefly Books Ltd.).
For example, "Virgo: Your boogers will grow legs and walk about on your face." Much of the humor is earthy.
Write about boogers and Spontaneously Exploding Underpants, which I think we all agree is an excellent name for a rock band--but Dave Barry might not appreciate it.
He formed a prolific partnership with Markus Boogers, once of West Ham, and is now looking forward to achieving his full potential in Scotland.
Or the Dutch deadbeat Redknapp insists still competes with Raducioiu for the mantle of his worst-ever foreign signing - the incomparable, yet still almost unknown, Marco "Bonkers" Boogers.