From Ancient Greek πνευμονία or pneumonía (lung disease), from πνεύμων or pneúmōn (lung) + -ία or -ía).
pneumonia (usually uncountable, plural pneumonias or pneumoniæ or pneumoniae)
- An acute or chronic inflammation of the lungs caused by viruses, bacteria or other microorganisms, or sometimes by physical or chemical irritants.
- atypical pneumonia
- double pneumonia
- lobar pneumonia
- pneumococcal pneumonia
- pneumocystis pneumonia
- single pneumonia
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