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English definition of “pneumonia”

pneumonia

noun [U] uk   /njuːˈməʊ.ni.ə/ us    /nuːˈmoʊ.njə/
a serious illness in which one or both lungs become red and swollen and filled with liquid: People who are bedridden can easily get pneumonia.Respiratory disorders catch/get pneumonia informal to make yourself ill by getting too cold: She'll catch pneumonia going out without a coat in this weather!Being and falling ill
(Definition of pneumonia from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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