clotted; clotting
1
: to become a clot : form clots
2
: to undergo a sequence of complex chemical and physical reactions that results in conversion of fluid blood into a coagulated mass : coagulate
1
: to cause to form into or as if into a clot
2
: to fill with clots
Examples of clot in a Sentence
Noun
We were told that his stroke was caused by a clot in his brain.
a clot of daisies occupied one corner of the flower bed
Verb
medications that prevent blood from clotting
substances that help to clot blood
Recent Examples on the Web
Meg Wingerter, Denver Post, 26 June 2025
At the same time, a cascade of proteins in the blood activates the protein fibrin, which forms a mesh that stabilizes the platelet plug, creating a strong, lasting clot to seal the vessel and stop bleeding.
—Paul McClure 05, New Atlas, 5 June 2025
Taayoo Murray, Essence, 27 May 2025
Bleeding disorders Heavy bleeding during a period could be a sign of a bleeding disorder such as immune thrombocytopenia (ITP), which prevents blood from clotting properly.
—Ashley Abramson, SELF, 7 May 2025
See All Example Sentences for clot
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Noun
Rattlesnake venom messes with the body’s systems to create and dissolve clots, causing blood to leak out into the surrounding tissue, Heard said.
—Meg Wingerter, Denver Post, 26 June 2025
At the same time, a cascade of proteins in the blood activates the protein fibrin, which forms a mesh that stabilizes the platelet plug, creating a strong, lasting clot to seal the vessel and stop bleeding.
—Paul McClure 05, New Atlas, 5 June 2025
Verb
Conditions like silent high blood pressure, atrial fibrillation, or clotting disorders can also go undetected in people who appear otherwise healthy.
—Taayoo Murray, Essence, 27 May 2025
Bleeding disorders Heavy bleeding during a period could be a sign of a bleeding disorder such as immune thrombocytopenia (ITP), which prevents blood from clotting properly.
—Ashley Abramson, SELF, 7 May 2025
See All Example Sentences for clot
Cite this Entry
“Clot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clot. Accessed 14 Jul. 2025.
Copy CitationKids Definition
clot
1 of 2 noun
: a mass or lump made by a liquid (as blood) that thickens and sticks together
clot
2 of 2 verb
clotted; clotting
: to become or cause to become a clot : form clots
Medical Definition
clot
2 of 2 verb
clotted; clotting
: to undergo a sequence of complex chemical and physical reactions that results in conversion of fluid blood into a coagulum and that involves shedding of blood, release of thromboplastin from blood platelets and injured tissues, inactivation of heparin by thromboplastin permitting calcium ions of the plasma to convert prothrombin to thrombin, interaction of thrombin with fibrinogen to form an insoluble fibrin network in which blood cells and plasma are trapped, and contraction of the network to squeeze out excess fluid : coagulate
: to cause to form into or as if into a clot
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