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pyothorax

American  
[pahy-oh-thawr-aks, -thohr-] / ˌpaɪ oʊˈθɔr æks, -ˈθoʊr- /

noun

Pathology.
  1. empyema.


Etymology

Origin of pyothorax

First recorded in 1850–55; pyo- + thorax