Definition of mumps noun from the Oxford Advanced Learner's Dictionary

 

mumps

 noun
noun
BrE BrE//mʌmps//
 
; NAmE NAmE//mʌmps//
 
[uncountable] Ailments and diseases
 
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a disease, especially of children, that causes painful swellings in the neck See related entries: Ailments and diseases Word Origin late 16th cent.: from obsolete mump ‘grimace, have a miserable expression’.
See the Oxford Advanced American Dictionary entry: mumps