thrombosis

American  

[throm-boh-sis] / θrɒmˈboʊ sɪs /

noun

Pathology.

thromboses plural

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

---

thrombosis British  

/ θrɒmˈbəʊsɪs, θrɒmˈbɒtɪk /

noun

1. the formation or presence of a thrombus

2. informal short for coronary thrombosis

---

thrombosis Scientific  

/ thrŏm-bō′sĭs /

1. The formation or presence of a thrombus.

---

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).

---

Other Word Forms

Derived Forms

• thrombotic
  adjective

Inflected Forms

Nouns

• thromboses
  plural

Etymology

Origin of thrombosis

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

Compare meaning

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

• thrombus vs. thrombosis

Example Sentences

See Examples For:

thrombosis thromboses

He missed a chunk of last season treating a diagnosis of deep vein thrombosis and the Spurs didn’t overreact.

From The Wall Street Journal ● May 14, 2026

Jack's cause of death was recorded at the time as deep vein thrombosis, cerebral palsy alongside epilepsy.

From BBC ● Mar. 5, 2026

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

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

He had previously overcome cancer, a heart attack and two thromboses.

From BBC ● Feb. 5, 2024

The U.S. move is warranted, says Gowthami Arepally, a hematologist at the Duke University School of Medicine, given that the constellation of symptoms, cerebral venous sinus thromboses and low platelet counts, is very unusual.

From Science Magazine ● Apr. 13, 2021

A second diagnostic advance comes from use of radiopaque dyes, which are injected into arteries leading to the brain: X rays help to locate obstructions to circulation resulting from thromboses and especially aneurysms.

From Time Magazine Archive

Stravinsky is 87 and in precarious health; Craft writes painfully and graphically about the old man's gastric ulcers and thromboses.

From Time Magazine Archive

Fibrin is liberated, and thromboses occur, especially in the liver.

From Aids to Forensic Medicine and Toxicology by Robertson, W. G. Aitchison (William George Aitchison )