mammary gland

noun

: any of the large compound modified sebaceous glands that in female mammals are modified to secrete milk, are situated ventrally in pairs, and usually terminate in a nipple

Examples of mammary gland in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
At the time of the confirmation, the ewe had symptoms of the infection in the way of mastitis, inflammation of the mammary glands. Ars Technica, 24 Mar. 2025 Kittens knead their mother's mammary glands, or breasts, while nursing, likely to aid the release of milk. Claire Thornton, USA TODAY, 31 Jan. 2025 Once weaned, the kittens should be separated from the mother gradually, allowing her milk to dry up naturally, so that her mammary glands do not become engorged. George Monastiriakos, Newsweek, 30 Dec. 2024 When cows get infected with bird flu, the highest level of the virus is concentrated in the mammary gland. Alyssa Goldberg, USA TODAY, 4 Feb. 2025 See All Example Sentences for mammary gland

Word History

First Known Use

1826, in the meaning defined above

Time Traveler
The first known use of mammary gland was in 1826

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Cite this Entry

“Mammary gland.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mammary%20gland. Accessed 13 Apr. 2025.

Kids Definition

mammary gland

noun
: one of the large glands that in female mammals produce milk and in males are usually underdeveloped, are located in pairs on the abdominal side of the animal body, and usually end in a nipple

Medical Definition

mammary gland

noun
: any of the large compound sebaceous glands that in female mammals are modified to secrete milk, are situated ventrally in pairs, and usually terminate in a nipple

More from Merriam-Webster on mammary gland

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