Definition of empyematous in English:

empyematous

Pronunciation /ˌɛmpʌɪˈiːmətəs/

adjective

rare Medicine

Origin

Mid 17th century; earliest use found in Robert Lovell (?1630–1690), naturalist. From ancient Greek ἐμπυηματ-, ἐμπύημα empyema + -ous.