thrombosis

noun

throm·​bo·​sis thräm-ˈbō-səs 

thrəm-

plural thromboses thräm-ˈbō-ˌsēz 

thrəm-

: the formation or presence of a blood clot within a blood vessel

thrombotic

thräm-ˈbä-tik 

thrəm-

adjective

Examples of thrombosis in a Sentence

Recent Examples on the Web

But two weeks later and without warning, thrombosis killed her. —Shannon Taggart, Artforum, 1 Feb. 2026

An incident in which an astronaut experienced a case of jugular venous thrombosis, a dangerous condition in which a blood clot can form in a person’s jugular vein, was also revealed in an academic journal. —Jackie Wattles, CNN Money, 8 Jan. 2026

The time away began abruptly in February, with the discovery of deep vein thrombosis in his right shoulder. —Andrew Greif, NBC news, 17 Dec. 2025

Earlier this year, his left arm swelled up abruptly, requiring four surgeries to resolve what was eventually diagnosed as deep-vein thrombosis. —David Kamp, New Yorker, 24 Nov. 2025

Word History

Etymology

New Latin, from Greek thrombōsis clotting, from thrombousthai to become clotted, from thrombos clot

First Known Use

1857, in the meaning defined above

Phrases Containing thrombosis

• coronary thrombosis

Rhymes for thrombosis

• cirrhosis
• fibrosis
• gliosis
• hypnosis
• ichthyosis
• ketosis
• kurtosis
• lordosis
• meiosis
• miosis
• mitosis
• mycosis

Kids Definition

thrombosis

noun

throm·​bo·​sis thräm-ˈbō-səs 

plural thromboses -ˈbō-ˌsēz 

: the formation or presence of a blood clot within a blood vessel

Medical Definition

thrombosis

noun

throm·​bo·​sis thräm-ˈbō-səs, thrəm- 

plural thromboses -ˌsēz 

: the formation or presence of a blood clot within a blood vessel see coronary thrombosis, deep vein thrombosis