thrombosis
noun [countable, uncountable] (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 thrombosisTopics Illnessc2血栓形成 Word Originearly 18th cent.: modern Latin, from Greek thrombōsis ‘curdling’, from thrombos ‘blood clot’.