Mastitis

n. infection of the breasts or udder

Mastitis is the inflammation of the mammalian breast. It is called mastitis when it occurs to breastfeeding mothers and non-puerperal otherwise. Mastitis can rarely occur in men. Inflammatory breast cancer has symptoms very similar to mastitis and must be ruled out.Popular usage of the term mastitis varies by geographic region. Outside the US it is commonly used for puerperal and nonpuerperal cases, in the US the term nonpuerperal mastitis is rarely used.Chronic cystic mastitis, also called fibrocystic disease, a condition rather than a disease, is characterized by noncancerous lumps in the breast.
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Mastitis is an infection of the breast. It usually only occurs in women who are breastfeeding their babies. [more]Mastitis - Community and Resources

Noun
1. inflammation of a breast (or udder)
(hypernym) inflammation, redness, rubor

n. mastitis, infection of the breasts or udder