pneumonia pneumonia /njuːˈməʊ.ni.ə/ aep /nuːˈmoʊ.njə/ noun [U]
1 F0 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.Thesaurus+: ↑Respiratory disorderscatch/get pneumonia INFORMAL2 F0 to make yourself ill by getting too cold: » She'll catch pneumonia going out without a coat in this weather!Thesaurus+: ↑Being and falling ill |