English

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

 

norovirus

 noun
noun
BrE BrE//ˈnɔːrəvaɪrəs//
 
; NAmE NAmE//ˈnɔːrəvaɪrəs//
 
; BrE also BrE//ˈnɔːrəʊvaɪrəs//
 
; NAmE also NAmE//ˈnɔːroʊvaɪrəs//
 
[uncountable, singular] (British English winter vomiting bug/virus [countable])
 
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a very infectious disease that makes people vomit and have diarrhoea very badly for a few days