aortic stenosis
noun [ C or U ] medical specialized uk/eɪˌɔː.tɪk stɪˈnəʊ.sɪs/ us/eɪˌɔːr.t̬ɪk stəˈnoʊ.sɪs/ aortic stenoses /eɪˌɔː.tɪk stɪˈnəʊ.siːz/ /eɪˌɔːr.t̬ɪk stəˈnoʊ.siːz/
主动脉瓣狭窄
a narrowing of the heart valve that supplies the aorta (= the body's largest artery), reducing the blood flow to the aorta
He had been suffering from aortic stenosis and died of heart failure in his sleep. 他主动脉瓣狭窄，在睡梦中死于心脏衰竭。