Definition of “pneumonia” - English Dictionary

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“pneumonia” in British English

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(Definition of “pneumonia” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“pneumonia” in American English

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pneumonianoun [ U ]

us /nʊˈmoʊn·jə/

a serious illness in which one or both lungs become red and swollen and filled with liquid:

The patient died of pneumonia.

(Definition of “pneumonia” from the Cambridge Academic Content Dictionary © Cambridge University Press)