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TOEFL BNC: 19991 COCA: 13223

clot

1 of 2

noun

1
: a portion of a substance adhering together in a thick nondescript mass (as of clay or gum)
2
a
: a roundish viscous lump formed by coagulation of a portion of liquid or by melting
b
: a coagulated mass produced by clotting of blood
3
British : blockhead
4
: cluster, group
a clot of spectators

clot

2 of 2

verb

clotted; clotting

intransitive verb

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

transitive verb

1
: to cause to form into or as if into a clot
2
: to fill with clots
also : clog
clotted streets

Example Sentences

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
Noun
But estrogen also accounts for most of the blood clot risk associated with oral contraceptives. Matthew Perrone, Chicago Tribune, 11 July 2022 But estrogen also accounts for most of the blood clot risk associated with oral contraceptives. Matthew Perrone, Anchorage Daily News, 11 July 2022 But estrogen also accounts for most of the blood clot risk associated with oral contraceptives. CBS News, 11 July 2022 Some medicines, such as estrogens, can increase blood clot risk. Dr. Keith Roach, oregonlive, 1 Nov. 2021 The stockpile is, in part, an unintended consequence of the U.S.’s decision in April to temporarily suspend administration of J&J doses to assess a rare blood-clot risk. Julie Wernau, WSJ, 8 June 2021 On Twitter, some critics pointed out that the inserts with birth control packs clearly describe the blood clot risk. BostonGlobe.com, 30 May 2021 The vaccination staff has been trained to give information about the blood clot risk and symptoms that require medical attention. John Cutter, orlandosentinel.com, 26 Apr. 2021 Federal health officials said the single dose vaccine is critical to fight the pandemic – and that the small clot risk could be handled with warnings. Jordan Culver, USA TODAY, 25 Apr. 2021
Verb
Along with fiber, green beans are a source of folate (important for pregnant women) and vitamin K, which supports bone health and the blood's ability to clot. Cate Geiger Kalus, Country Living, 8 Aug. 2022 In 1951, a person attempting suicide with warfarin recovered fully after treatment with vitamin K, and doctors realized that this drug used in low doses might be effective for people with a tendency to clot too much. Dr. Keith Roach, oregonlive, 6 July 2022 Deputies treated the boy’s stab wound with hemostatic gauze, which is designed to help quickly clot and stop bleeding, until paramedics arrived and took him to a San Diego hospital, Lizarraga said. Alex Riggins, San Diego Union-Tribune, 1 June 2022 And each day their spongy interior, the marrow, churns out hundreds of billions of blood cells — which carry oxygen, fight infections and clot the blood in wounds — as well as other cells that make up cartilage and fat. Amber Dance, Smithsonian Magazine, 3 Mar. 2022 About one in 5,000 males are diagnosed with the blood disorder in which blood does not clot in a typical way, according to the Centers for Disease Control and Prevention. Kyle Neddenriep, The Indianapolis Star, 24 Feb. 2022 Too little and their blood can clot, causing another heart attack or stroke. Ellen Gabler, Milwaukee Journal Sentinel, 22 Oct. 2021 Weitz’s son, Ezra, has acute asthma, for which he has been hospitalized, as well as hemophilia, which causes his blood to not clot properly. Courtney Tanner, The Salt Lake Tribune, 23 Aug. 2021 The second problem is that if the atria don’t contract, the blood can pool and clot, putting a person at risk for embolism. Dr. Keith Roach, oregonlive, 17 June 2021 See More

Word History

Etymology

Noun

Middle English, from Old English clott; akin to Middle High German klōz lump, ball — more at clout

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1

Verb

15th century, in the meaning defined at intransitive sense 1

Time Traveler
The first known use of clot was before the 12th century

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