n. Part of domestic milk-giving animal that expresses milk, especially cow. Also goat, sheep, yak. See mammary gland.
the GNU version of the Collaborative International Dictionary of English
n. The glandular organ in which milk is secreted and stored; -- popularly called the bag in cows and other quadrupeds. See mamma.
n. One of the breasts of a woman.
The Century Dictionary and Cyclopedia
n. The mammary glands of cattle and various other animals, especially when large and baggy and with more than one teat, as two or four; the milk-bag. Single glands with one nipple apiece are more frequently called teat or dug.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. mammary gland of bovids (cows and sheep and goats)
Word Usage
"In a situation described as udder chaos, officials at the Department for Environment, Food and Rural Affairs Defra admitted in Parliamentary questions that 20,979 of the animals had been mislaid."