Definition of thrombosis noun from the Oxford Advanced Learner's Dictionary



BrE BrE//θrɒmˈbəʊsɪs//
; NAmE NAmE//θrɑːmˈboʊsɪs//
[countable, uncountable] (pl. thromboses
BrE BrE//θrɒmˈbəʊsiːz//
; NAmE NAmE//θrɑːmˈboʊsiːz//
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a serious condition caused by a blood clot (= a thick mass of blood) forming in a blood vessel (= tube) or in the heart see also coronary thrombosis, deep vein thrombosis Word Originearly 18th cent.: modern Latin, from Greek thrombōsis ‘curdling’, from thrombos ‘blood clot’.
See the Oxford Advanced American Dictionary entry: thrombosis