柯林斯詞典embolism /??mb??l?z?m/ (embolisms) 1. N-COUNT An embolism is a serious medical condition that occurs when an artery becomes blocked, usually by a blood clot. 栓塞[oft adj N] 返回 embolism劍橋詞典a bubble of air , a mass of blood that has become hard, or a small piece of fat that blocks an artery （血琯的）栓塞，血栓 返回 embolism