deep vein thrombosisBrE/ˌdiːp veɪn ˌθrɒmˈbəʊsɪs/NAmE/ˌdiːp veɪn ˌθrɑːmˈboʊsɪs/noun[U, C] (abbreviationDVT) (medical医学) aseriousconditioncausedbyabloodclot (= a thick mass of blood) forming in a vein深静脉血栓形成◆Passengersonlong-haulflightsarebeingwarnedabouttherisksofdeepveinthrombosis. 长途航班上的乘客须注意可能出现深静脉血栓。