empyema

== English == === Etymology === From Ancient Greek ἐμπύημα (empúēma, “gathering, abscess”). === Pronunciation === (Received Pronunciation) IPA(key): /ɛm.pʌɪˈiː.mə/ (General American) IPA(key): /ɛm.paɪˈiː.mə/ Rhymes: -iːmə === Noun === empyema (plural empyemas or empyemata) (medicine) A collection of pus within a naturally existing anatomical cavity (as opposed to an abscess, which occurs in a newly formed cavity). ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== === References === “empyema”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022. “empyema”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.