Word Study
empyema
CIDE DICTIONARY
empyema, n. [NL., fr. Gr. , from to suppurate; in + pus.].
A collection of blood, pus, or other fluid, in some cavity of the body, especially that of the pleura. Dunglison. [1913 Webster]
" The term empyema is now restricted to a collection of pus in the cavity of the pleura." [1913 Webster]
OXFORD DICTIONARY
empyema, n. a collection of pus in a cavity, esp. in the pleura.
Etymology
LL f. Gk empuema f. empueo suppurate (as EN-(2), puon pus)
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