- a mass or lump.
- a semisolid mass, as of coagulated blood.
- a small compact group of individuals: a clot of sightseers massed at the entrance.
- British Informal. blockhead, dolt, clod.
- to form into clots; coagulate.
- to cause to clot.
- to cover with clots: Carefully aimed snowballs clotted the house.
- to cause to become blocked or obscured: to clot the book's narrative with too many characters.
Origin of clot
before 1000; Middle English; Old English clott lump; cognate with Middle Dutch klotte, German Klotz block, log (cf. klutz)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for clot
The fear is that thinning the blood further might promote more bleeding rather than decrease the risk of clot enlargement.Good News for Hillary Clinton’s Health
January 1, 2013
Trauma to the leg or to the hips and pelvis might cause a clot, but we were not told of any leg injury.
Alternatively, is it possible that the clot in question is one in the lining of the brain that can form after head trauma.
Clinton was hospitalized to treat a ‘clot’ Sunday after a recent illness, fainting, and concussion.
And maybe her concussion was pretty bad, and she was dizzy and miserable and in bed a lot, and eventually the clot returned.
If you move about much you're likely to unsettle the clot and start it again.The Boy Scout Treasure Hunters
Charles Henry Lerrigo
It will, after a time, turn sour, separating like blood into clot and serum.Fragments of science, V. 1-2
A clot of mud caught the knight on the side of his bullet head.Long Will
When the clot has separated, it is picked out with a needle, leaving the serum.A Manual of Clinical Diagnosis
James Campbell Todd
In short, the play is one clot of blood from beginning to end.
- a soft thick lump or massa clot of blood
- British informal a stupid person; fool
- to form or cause to form into a soft thick lump or lumps
Old English clott, of Germanic origin; compare Middle Dutch klotte block, lump
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 clot
early 15c., from clot (n.). Of fluids from 1590s. Related: Clotted; clotting.
Online Etymology Dictionary, © 2010 Douglas Harper
- A soft, nonrigid, insoluble mass formed when blood or lymph gels.
- To coagulate.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A soft insoluble mass formed when blood or lymph gels. During blood clotting, white blood cells, red blood cells, platelets, and various clotting factors interact in a cascade of chemical reactions initiated by a wound. When a body tissue is injured, calcium ions and platelets act on prothrombin to produce the enzyme thrombin. Thrombin then catalyzes the conversion of the protein fibrinogen into fibrin, a fibrous protein that holds the clot together. An abnormal clot inside the blood vessels or the heart (a thrombus or an embolus) can obstruct blood flow.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.