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mastitis

American  
[ma-stahy-tis] / mæˈstaɪ tɪs /

noun

  1. Pathology. inflammation of the breast.

  2. Veterinary Pathology. inflammation of the udder, especially of cows; garget.


mastitis British  
/ mæˈstaɪtɪs /

noun

  1. inflammation of a breast or an udder

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of mastitis

First recorded in 1835–45; mast- + -itis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In detention, Flores said, she began to suffer a painful swelling, which she believed could have been mastitis brought on by her inability to nurse her baby.

From Salon • Mar. 24, 2026

A government spokesperson said the infected sheep was a female who had been showing signs of mastitis, an inflammation of the breast tissue.

From BBC • Mar. 24, 2025

A new mother stands in a drugstore, holding a screaming infant as she fights mastitis, desperate to feed her baby.

From New York Times • Dec. 7, 2022

She’s also working with dairy veterinarians to better understand mastitis, a common but painful inflammation of breast tissue, to come up with improved treatments and design a better breast pump for women.

From Los Angeles Times • Oct. 14, 2022

For the baby's mouth contains bacteria which while harmless in themselves may if they get into the cracks of the nipple set up an inflammation of the breast or "mastitis" and cause an abscess.

From Woman Her Sex and Love Life by Robinson, William J.

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