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Syllabification: pneu·mo·nia
Pronunciation: /n(y)o͞oˈmōnyə

Definition of pneumonia in English:


Lung inflammation caused by bacterial or viral infection, in which the air sacs fill with pus and may become solid. Inflammation may affect both lungs ( double pneumonia), one lung ( single pneumonia), or only certain lobes ( lobar pneumonia).
Example sentences
  • The commonest infection is a type of pneumonia, a serious lung infection.
  • There are immunisations for several of the infections that can cause pneumonia.
  • The most common type of pneumonia is bronchopneumonia, which affects the bronchioles.


early 17th century: via Latin from Greek, from pneumōn 'lung'.



Pronunciation: /n(y)o͞oˈmänik/
Example sentences
  • No vaccine currently is available for pneumonic or bubonic plague.
  • In summary, SARS is a highly contagious and predominantly pneumonic illness.
  • Daily radiographic assessment is essential for monitoring of this potentially rapidly progressive pneumonic illness.

Definition of pneumonia in:

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