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mastitis

noun [U]
 
 
/mæsˈtaɪ.tɪs/ US  /-t̬ɪs/ specialized

Definition

painful swelling of the breast or the udder (= the part of a cow which produces milk), usually because of an infectionSwellings and lumps
(Definition of mastitis noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of mastitis