trombosi bedeutet auf Englisch

blood clot [blood clots]▼(clot formed from platelets and other elements)
noun
[UK: blʌd klɒt] [US: ˈbləd ˈklɑːt]

thrombosis [thromboses]▼(formation of thrombi in the blood vessels, causing obstruction of the circulation)
noun
[UK: θrɒm.ˈbəʊ.sɪs] [US: θrɒmˈbo.ʊ.sɪs]

thrombus [thrombuses]▼(blood clot formed in blood vessels that leads to thrombosis)
noun
[UK: θrˈɒmbəs] [US: θrˈɑːmbəs]