arteriovenous malformation
noun [ C or U ] medical specialized uk/ɑː.tɪə.ri.əʊˈviː.nəs mæl.fɔːˌmeɪ.ʃən/ us/ɑːrˌtɪr.i.oʊˈviː.nəs mæl.fɔːrˈmeɪ.ʃən/ (abbreviation AVM)
动静脉畸形
a condition present from birth in which there is a problem with the connection between the arteries and veins in the brain, causing blood from the arteries to flow directly into the veins without passing through the capillaries