em·phy·se·ma
noun/ˌemfɪˈsiːmə/
/ˌemfɪˈsiːmə/
[uncountable] (medical)- a condition that affects the lungs, making it difficult to breathe
肺气肿 Word Originmid 17th cent. (originally referring to a condition where air is abnormally present in the body tissues): via late Latin from Greek emphusēma, from emphusan ‘puff up’.