clot

[klot] /klɒt/
noun
1.
a mass or lump.
2.
a semisolid mass, as of coagulated blood.
3.
a small compact group of individuals:
a clot of sightseers massed at the entrance.
4.
British Informal. blockhead, dolt, clod.
verb (used without object), clotted, clotting.
5.
to form into clots; coagulate.
verb (used with object), clotted, clotting.
6.
to cause to clot.
7.
to cover with clots:
Carefully aimed snowballs clotted the house.
8.
to cause to become blocked or obscured:
to clot the book's narrative with too many characters.
Origin
before 1000; Middle English; Old English clott lump; cognate with Middle Dutch klotte, German Klotz block, log (cf. klutz)
Related forms
declot, verb, declotted, declotting.
nonclotting, adjective
unclotted, adjective
Examples from the web for clot
  • She died of a blood clot blockage in her lungs, according to the office of the medical examiner.
  • Most of the snow was melted or trampled to mud, but here and there a clot of it still showed grey rather than white in the gloom.
  • Far more serious is the possibility that the clot, or a piece of it, splits off and starts racing round the circulatory system.
  • Access was via a single ramp, where a human clot formed.
  • Some organisms, for example, use only six proteins to clot blood-irreducibility reduced.
  • clot busting drug reduces number of amputations from severe frostbite.
  • Though the region with the aneurysm is initially wider than normal, blood swirling in aneurysm can clot.
  • These materials are prone to infection, clot formation and other complications.
  • The liquid does not seem to form a conventional blood clot, the group notes.
  • If that clot is in the vertebral artery system, it can cause a stroke in the brain stem, which can be devastating.
British Dictionary definitions for clot

clot

/klɒt/
noun
1.
a soft thick lump or mass: a clot of blood
2.
(Brit, informal) a stupid person; fool
verb clots, clotting, clotted
3.
to form or cause to form into a soft thick lump or lumps
Derived Forms
clottish, adjective
Word Origin
Old English clott, of Germanic origin; compare Middle Dutch klotte block, lump
Word Origin and History for clot
n.

Old English clott "a round mass, lump," akin to Dutch kloot "ball," Danish klods "a block, lump," German Klotz "lump, block;" probably related to cleat and clod.

v.

early 15c., from clot (n.). Of fluids from 1590s. Related: Clotted; clotting.

clot in Medicine

clot (klŏt)
n.
A soft, nonrigid, insoluble mass formed when blood or lymph gels. v. clot·ted, clot·ting, clots
To coagulate.

clot in Science
clot
  (klŏt)   
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.