also: おんえき
noun
fever epidemic; pestilence
Rare historical medical term for a widespread febrile disease; not used in modern clinical Japanese.
古文書には「瘟疫流行」と記されている。
Old documents record 'fever epidemic outbreak'.
The kanji 瘟 (fever/epidemic) and 疫 (epidemic) combine to form a Sino-Japanese compound meaning 'fever epidemic'. The exact historical derivation is uncertain; the term is now rare.