thrombus

noun

throm·​bus ˈthräm-bəs 

plural thrombi ˈthräm-ˌbī  -ˌbē 

: a clot of blood formed within a blood vessel and remaining attached to its place of origin compare embolus

Examples of thrombus in a Sentence

Recent Examples on the Web

During an angioplasty, a procedure developed in the 1980s, heart doctors would place a balloon made of flexible polymers inside an artery to open up and clear the thrombus. — William Cornwell, The Conversation, 19 Nov. 2025

Current treatments for stroke patients often involve injectable drugs that dissolve a blockage in the blood vessel called a thrombus. — Andrew Paul, Popular Science, 13 Nov. 2025

The medical examiner’s office concluded that the death in April of a woman in sheriff’s office custody was caused by a coronary thrombus, or blood clot, due to atherosclerotic and hypertensive cardiovascular disease. — Emerson Clarridge, Fort Worth Star-Telegram, 26 Aug. 2025

The clot, or thrombus, is made of fibrin, platelets, white blood cells and some red blood cells. — Daryl Austin, USA Today, 15 Aug. 2025

Word History

Etymology

New Latin, from Greek thrombos clot

First Known Use

1725, in the meaning defined above

Rhymes for thrombus

• bombus

Kids Definition

thrombus

noun

throm·​bus ˈthräm-bəs 

plural thrombi -ˌbī 

-ˌbē

: a clot of blood formed within a blood vessel and remaining attached to its place of origin compare embolus

Medical Definition

thrombus

noun

throm·​bus ˈthräm-bəs 

plural thrombi -ˌbī  -ˌbē 

: a clot of blood formed within a blood vessel and remaining attached to its place of origin compare embolus