Also found in: Dictionary, Thesaurus, Medical, Wikipedia.


see mammary glandmammary gland,
organ of the female mammal that produces and secretes milk for the nourishment of the young. A mammal may have from 1 to 11 pairs of mammary glands, depending on the species. Generally, those mammals that bear larger litters have more glands.
..... Click the link for more information.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



the mammary glands of agricultural animals. In ruminants and mares the udder is located in the inguinal region, between the thighs. In swine udders are symmetrically placed right and left of the white line on the belly. The udder of the cow, camel, and reindeer consists of two fore, or belly, parts and two rear, or hip, parts. Milk is synthesized in the secreting epithelium of tiny sacs called alveoli. Each cell synthesizes milk with each of its constituent parts. Alveoli, the largest of which include up to 100 epithelium cells each, are placed radially around the milk ducts. These ducts unite to form larger ones and open into milk cisterns. Milk is retained in the udder because of capillary action, as well as the presence of circular closing muscles (sphincters) in the teats. The udder is well supplied with blood, because 500 liters of blood must pass through the udder in order to make 1 kg of milk.

In heifers the glandular tissues of the udder begin to grow with the onset of sexual maturity and develop very intensely not long before calving. (In pregnant cows this is in the second half of the dry period, a month before calving.) In dairy cows the udder is goblet-shaped and set forward. It is firmly attached to the body (not hanging), and its parts are even and symmetrically placed. This kind of udder is soft, pliant, and elastic to the touch; after milking it becomes smaller and has long, twisted, clearly visible veins. The udders of sheep, goats, and mares each consist of two complexes of glands and two teats.


Zaks, M. G. Molochnaia zheleza. Moscow-Leningrad, 1964. Chapter 1. [5_1570_1]
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


(vertebrate zoology)
A pendulous organ consisting of several mammary glands enclosed in a single envelope; each gland has its own nipple; found in some mammals, such as the cow and goat.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


the large baglike mammary gland of cows, sheep, etc., having two or more teats
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Packed with benefits including B12, calcium and protein, Shaken Udder milkshakes are also gluten free and suitable for vegetarians.
Single dose of injection provides optimum bactericidal therapeutic antibiotic concentration in udder tissue for five days.
On Sunday morning I returned and found the temperature down, eyes wide and an udder less red - she was on the mend.
In his address, the Vice-Chancellor said that if one of the cow/buffalo teats is infected by mastitis, gradually whole udder is wasted due to swelling and spreading of mastitis.
This is why immediate medical care was advised for pregnant women who have consumed raw milk from Udder Milk during the last few months.
This may be due to the destruction of milk producing tissues in the udder due to mastitis infection.
Recent literature describe the use of ultrasonography for estimating the size of udder cisterns in recent domestic species.
Keywords: Probiotics; Antagonistic properties; Sanitization of udder; Microbial load of the udder teats skin; Milk quality; Somatic cells
It's something we can all do, but the vegan ice cream truck Like No Udder that he co-owns with his wife Karen has given them a moving platform.
Factors affecting the clinical expression of mastitis also include the rate of bacterial exposure of the mammary glands and the efficiency of udder defense mechanisms.