mammary gland

noun

Definition of mammary gland

: 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 In 1996, researchers at the Roslin Institute cloned a cell taken from the mammary gland of a 6-year-old Finn Dorset sheep and an egg cell taken from a Scottish blackface sheep, and the result was Dolly. Washington Post, 21 May 2021 This work is from observational studies in people and the ability of these chemicals to cause mammary gland tumors in animal studies. Linda S. Birnbaum And Margaret L. Kripke, STAT, 21 Nov. 2020 Mammals are a class of animals so named because their young are kept alive with milk produced by the mammary glands of the females. James P. Dewan, chicagotribune.com, 21 Aug. 2019 Years later, after her recovery, Ramsdell decided to leave the heart behind and to start looking for asymmetry in the mammary glands of mammals. Tim Vernimmen, Quanta Magazine, 31 Jan. 2017 But her initial studies of mice proved disappointing — their left and right mammary glands didn’t seem to differ at all. Tim Vernimmen, Quanta Magazine, 31 Jan. 2017 Unfortunately, cancer in the mammary glands (similar to breast cancer in humans) can also occur in both male and female dogs. Texas A&m University, Houston Chronicle, 20 June 2018 The chances of a tumor being cancerous increases with age, so pay special attention to any abnormalities in your older pup’s mammary glands. Texas A&m University, Houston Chronicle, 20 June 2018 However, only about 50 percent of mammary tumors are cancerous, with a majority of these cases being carcinoma (arising from the lining of the ducts in the mammary gland), Wustefeld-Janssens said. Texas A&m University, Houston Chronicle, 20 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mammary gland.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of mammary gland

1826, in the meaning defined above

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The first known use of mammary gland was in 1826

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Dictionary Entries Near mammary gland

mammary

mammary gland

mammary pouch

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Cite this Entry

“Mammary gland.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mammary%20gland. Accessed 23 Sep. 2021.

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More Definitions for mammary gland

mammary gland

noun

English Language Learners Definition of mammary gland

: a gland in a woman's breast or in a female animal that produces milk

mammary gland

noun

Medical Definition of mammary gland

: 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

Nglish: Translation of mammary gland for Spanish Speakers

Britannica.com: Encyclopedia article about mammary gland

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