thrombosis

American  

[throm-boh-sis] / θrɒmˈboʊ sɪs /

noun

Pathology.

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

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thrombosis British  

/ θrɒmˈbəʊsɪs, θrɒmˈbɒtɪk /

noun

1. the formation or presence of a thrombus

2. informal short for coronary thrombosis

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thrombosis Scientific  

/ thrŏm-bō′sĭs /

1. The formation or presence of a thrombus.

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thrombosis Cultural  

1. The development of a blood clot in the circulatory system. Depending on the location of the clot, the resultant loss of circulation can lead to a stroke (cerebral thrombosis) or heart attack (coronary thrombosis).

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Other Word Forms

• thrombotic adjective

Etymology

Origin of thrombosis

First recorded in 1700–10; from New Latin, from Greek thrómbōsis; thromb-, -osis

Compare meaning

How does thrombosis compare to similar and commonly confused words? Explore the most common comparisons:

• thrombus vs. thrombosis

Example Sentences

Wembanyama returned to the court after a lengthy layoff last season caused by deep vein thrombosis in his right shoulder.

From Barron's • Nov. 17, 2025

Wembanyama hadn’t played a regular season contest in eight months—he missed a chunk of last season as he recovered from a worrisome diagnosis of deep vein thrombosis in his right shoulder.

From The Wall Street Journal • Oct. 23, 2025

He spent four weeks and five days in a coma and suffered an extremely rare, life-threatening side effect called VITT, or vaccine-induced immune thrombosis and thrombocytopenia.

From BBC • Jan. 15, 2025

The action star said that she had been unaware of the prevalence among pregnant women of cerebral venous thrombosis, or CVT, which is the development of a blood clot in the brain.

From Los Angeles Times • Dec. 30, 2024

I am not panting, and I’m not about to have a thrombosis.

From "The Pigman" by Paul Zindel