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.
- de·clot, verb, de·clot·ted, de·clot·ting.
- non·clot·ting, adjective
- un·clot·ted, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use clot in a sentence
There is a clot that forms and blood can’t get to the heart, and your heart muscle dies.Introducing a New “Freakonomics of Medicine” Podcast (Ep. 465) | Stephen J. Dubner | June 10, 2021 | Freakonomics
No cases of blood clots are expected in older men, and two cases in every million doses are expected for women 50 and older.FDA and CDC OK resuming J&J COVID-19 shots paused over rare clot concerns | Tina Hesman Saey | April 23, 2021 | Science News
Johnson & Johnson presented data on two other cases of clots in people who received the vaccine during a clinical trial, one of whom was a 25-year-old man with a hallmark of the symptoms.CDC advisers reconvene to weigh next steps on Johnson & Johnson vaccine after rare, serious blood clots | Lena H. Sun, Carolyn Y. Johnson | April 23, 2021 | Washington Post
She has had three surgeries to remove blood clots in her brain and her condition is slowly improving, he said.Health officials lean toward resuming Johnson & Johnson coronavirus vaccine — but with a warning | Laurie McGinley, Lena H. Sun | April 22, 2021 | Washington Post
Studies suggest that some inoculated people develop an immune response that attacks a protein called platelet factor 4 or PF4, which makes platelets form clots.People with rare blood clots after a COVID-19 jab share an uncommon immune response | Erin Garcia de Jesús | April 16, 2021 | Science News
Surgeons drilled a small hole in his skull and removed the blood clot.Doctors Say Motörhead Is So Hardcore, They Could Make Your Brain Bleed | Brandy Zadrozny | July 3, 2014 | THE DAILY BEAST
And so far I see scant evidence that anything changed after she suffered a blood clot in December 2012.
That led to a blood clot forming between her brain and skull.Karl Rove’s Awful, and Afactual, Remarks About Hillary Clinton’s Health | Sally Kohn | May 13, 2014 | THE DAILY BEAST
I had triple the normal rate of venous thromboembolism—a blood clot forming disorder—and an elevated risk for male breast cancer.23andMe and Me: Why Policymakers Should Set the Genetic Testing Company Free | Charles C. Johnson | February 4, 2014 | THE DAILY BEAST
The result is a rapidly enlarging blood clot, called a hematoma.Brain Bleed: Why Michael Schumacher’s Helmet Wasn’t Enough | Dr. Anand Veeravagu, MD, Tej Azad | January 3, 2014 | THE DAILY BEAST
Dugung nagpúgul sa inunlan, Placenta filled with a big clot of blood.A Dictionary of Cebuano Visayan | John U. Wolff
A clot is simply a mass of fibrin threads with a large number of corpuscles tangled within.A Civic Biology | George William Hunter
He was as one lost, as helpless in the crush of whirling humanity as a wind-driven clot of foam on a storm-tossed sea.The Life of Thomas Wanless, Peasant | Alexander Johnstone Wilson
There was a clot of seaweed at his wrist, and the soles of his feet and one up-turned palm were grayish and shriveled.The Jewels of Aptor | Samuel R. Delany
It was a completely unforeseeable thing—a blood clot broke loose in a vein, and lodged in his brain.The Colors of Space | Marion Zimmer Bradley
British Dictionary definitions for clot
a soft thick lump or mass: a clot of blood
British informal a stupid person; fool
to form or cause to form into a soft thick lump or lumps
- clottish, adjective
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
Scientific definitions for clot
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.