blood clot

American  

[bluhd klot] / ˈblʌd ˌklɒt /

noun

1. a mass of coagulated blood, as within a blood vessel or at the site of an open wound.

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blood clot Scientific  

1. See embolism

2. See thrombus

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Etymology

Origin of blood clot

First recorded in 1780–90

Compare meaning

How does blood-clot compare to similar and commonly confused words? Explore the most common comparisons:

• hematoma vs. blood clot

Example Sentences

Earlier research has shown that shingles infections can trigger blood clot formation near the brain and heart, increasing the risk of heart attacks, strokes and venous thromboembolism.

From Science Daily • Mar. 20, 2026

"I had a blood clot that was restricting blood and oxygen getting to my brain," he told the newspaper.

From BBC • Mar. 1, 2026

Emmy-winning actress Catherine O'Hara, who starred in "Schitt's Creek" and "Home Alone," died from a blood clot in her lungs, her death certificate revealed Monday.

From Barron's • Feb. 9, 2026

Their staff ace, three-time All-Star right-hander Zack Wheeler, was lost for the season in late August because of a blood clot in his arm.

From Los Angeles Times • Oct. 2, 2025

A heart attack is usually caused by a blood clot in the heart muscle.

From "The Hot Zone" by Richard Preston