thrombosis /θrɑmˈboʊsəs/ noun plural thromboses /-ˈboʊˌsiːz/ /θrɑmˈboʊˌsiːz/ plural thromboses /-ˈboʊˌsiːz/ /θrɑmˈboʊˌsiːz/ Learner's definition of THROMBOSIS
[count, noncount] medical
: a serious condition caused when a blood clot blocks the flow of blood in a blood vessel血栓形成