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Noun: pneumothorax  ,n(y)oo-mu'tho,raks
  1. Abnormal presence of air in the pleural cavity resulting in the collapse of the lung; may be spontaneous (due to injury to the chest) or induced (as a treatment for tuberculosis)

Derived forms: pneumothoraxes

Type of: abnormalcy [US], abnormality

Encyclopedia: Pneumothorax, artificial