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

 

influenza

 noun
noun
BrE BrE//ˌɪnfluˈenzə//
 
; NAmE NAmE//ˌɪnfluˈenzə//
 
[uncountable](formal)
 
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= flu the influenza strain known as H7 Word Origin mid 18th cent.: from Italian, literally ‘influence’, from medieval Latin influentia ‘inflow’, from Latin influere, from in- ‘into’ + fluere ‘to flow’. The Italian word also has the sense ‘an outbreak of an epidemic’, hence ‘epidemic’. It was applied specifically to an influenza epidemic which began in Italy in 1743, later adopted in English as the name of the disease.
See the Oxford Advanced American Dictionary entry: influenza

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