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thrombus vs. thrombosis

thrombus

[throm-buhs] / ˈθrɒm bəs /

noun

Pathology.

thrombi

a fibrinous clot that forms in and obstructs a blood vessel, or that forms in one of the chambers of the heart.

thrombosis

[throm-boh-sis] / θrɒmˈboʊ sɪs /

Pathology.

intravascular coagulation of the blood in any part of the circulatory system, as in the heart, arteries, veins, or capillaries.