Empyema

[,empai'i:mә]

(noun.) a collection of pus in a body cavity (especially in the lung cavity).

Typist: Ruth--From WordNet

(n.) A collection of blood, pus, or other fluid, in some cavity of the body, especially that of the pleura.

Checker: Louie

n. a collection of pus in the pleura.

Checked by Emil