mas·​ti·​tis | \ma-ˈstī-təs \
plural mastitides\-​ˈsti-​tə-​ˌdēz \

Definition of mastitis 

: inflammation of the breast or udder usually caused by infection

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Other Words from mastitis

mastitic \-​ˈsti-​tik \ adjective

Examples of mastitis in a Sentence

Recent Examples on the Web

So far, things have turned out fine — I’ve only been billed a $150 copayment for my ER trip, and the mastitis cleared up a few days after the visit. Sarah Kliff, Vox, "The bipartisan plan to end surprise ER bills, explained," 21 Sep. 2018 Painstakingly, Peri eventually managed to express milk by hand, but the whole experience was miserable, her fear of mastitis and her anger at the algorithms surfacing pornography masquerading as women’s health colliding in an airport bathroom. Jenna Sauers, Harper's BAZAAR, "Why Women Really Quit Breastfeeding," 17 July 2018 Found in Europe and the U.S., the bacteria can cause cows to develop mastitis, pneumonia, arthritis and other diseases. Nick Perry, The Seattle Times, "New Zealand to kill 150,000 cows to end bacterial disease," 28 May 2018 When primates are pregnant, zookeepers train them to be comfortable with breast contact and diligently check for mastitis, an infection of the breast tissue that commonly affects breastfeeding females. Zoe Sayler, Smithsonian, "What Aardvark Milk Reveals about the Evolution of Lactation," 21 Mar. 2018 Shepard came to Bell's rescue when the actress was dealing with mastitis, or a build-up of milk in her breast duct, after one of her daughters had stopped nursing. Grace Gavilanes,, "TMI Alert! 10 Times Celebs Overshared Like It Was NBD," 6 Feb. 2018 Women can be seriously laid up by a case of mastitis. Korin Miller, SELF, "What Actually Is Mastitis?," 3 Nov. 2017 The actress also suffered from mastitis, a painful infection of the breast tissue which often occurs within the first six to 12 weeks after giving birth. Lindsay Kimble,, "From Her Surprise Pregnancy to 24-Hour Labor: 5 Biggest Revelations From Amanda Seyfried's Post-Baby Interview," 13 July 2017 Max Paape, 80, a U.S. Agriculture Department dairy research scientist credited with developing medical methods of fighting bovine mastitis, an inflammatory disease that affects cow udders, died May 26 at a hospital in Bethesda, Md. Eric Bibby, Washington Post, "Notable deaths in the Washington area," 26 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mastitis.' 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 mastitis

circa 1842, in the meaning defined above

History and Etymology for mastitis

New Latin, from Greek mastos breast

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Statistics for mastitis

Last Updated

29 Nov 2018

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Time Traveler for mastitis

The first known use of mastitis was circa 1842

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More Definitions for mastitis


mas·​ti·​tis | \ma-ˈstīt-əs \
plural mastitides\-​ˈtit-​ə-​ˌdēz \

Medical Definition of mastitis 

: inflammation of the mammary gland or udder usually caused by infection

called also mammitis

— see blue bag, bovine mastitis, garget, summer mastitis

More from Merriam-Webster on mastitis

Rhyming Dictionary: Words that rhyme with mastitis Encyclopedia article about mastitis

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