mono·pneu·mo·na \ˌ ̷ ̷ ̷ ̷ˈn(y)ümənə, ˌ ̷ ̷näpˈn-\noun plural alsomono·pneu·mo·nes\-ˌnēz\ Usage: capitalized Etymology: New Latin, from mon- + -pneumona (from Greek pneumon-, pneumōn lungs) — more at pneumonia in some classifications: an order including the genus Ceratodus • mono·pneu·mo·ni·an\| ̷ ̷ ̷ ̷ ̷ ̷|mōnēən\adjective or noun • mono·pneu·mo·nous\| ̷ ̷ ̷ ̷|n(y)ümənəs\adjective