thrombus

[throm-buh s]

noun, plural throm·bi

[throm-bahy] /ˈθrɒm baɪ/. Pathology.

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

Origin of thrombus

1685–95; < New Latin < Greek thrómbos clot, lump

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for thrombi

clump, lump, set, battery, cluster, array, thickness, bunch, group, gob, precipitate, body, glob, consolidation, bundle, bulk, occlusion, batch, embolism, grume

Examples from the Web for thrombi

Historical Examples of thrombi

The thrombi grow by accretion in the direction of the heart.
A System of Practical Medicine by American Authors, Vol. I
Various
Thrombi, in some instances, soften in their centers, and are then observed to contain a puslike substance.
Special Report on Diseases of the Horse
United States Department of Agriculture
Thrombi from dilatation are met with both in dilated arteries and veins.
A System of Practical Medicine by American Authors, Vol. I
Various
The danger of this is greatly increased by infection, which breaks down the thrombi in the veins and arteries.
Surgery, with Special Reference to Podiatry
Maximilian Stern
Thrombi from compression are frequently formed in veins, in the vicinity of growing tumors.
A System of Practical Medicine by American Authors, Vol. I
Various

British Dictionary definitions for thrombi

thrombus

noun plural -bi (-baɪ)

a clot of coagulated blood that forms within a blood vessel or inside the heart and remains at the site of its formation, often impeding the flow of bloodCompare embolus

Word Origin for thrombus

C17: from New Latin, from Greek thrombos lump, of obscure origin

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for thrombi

thrombus

1690s, Modern Latin, from Greek thrombos "lump, piece, clot of blood, curd of milk."

thrombi in Medicine

thrombus

[thrŏm′bəs]

n. pl. throm•bi (-bī)

A fibrinous clot formed in a blood vessel or in a chamber of the heart.

thrombi in Science

thrombus

[thrŏm′bəs]

Plural thrombi (thrŏm′bī′)

A clot consisting of fibrin, platelets, red blood cells, and white blood cells that forms in a blood vessel or in a chamber of the heart and can obstruct blood flow. The rupture of atherosclerotic plaques can cause arterial thrombosis (the formation of thrombi), while tissue injury, decreased movement, oral contraceptives, prosthetic heart valves, and various metabolic disorders increase the risk for venous thrombosis. A thrombus in a coronary artery can cause a heart attack. Compare embolus.