blood clot

American  

[bluhd klot] / ˈblʌd ˌklɒt /

noun

blood clots plural

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

---

blood clot Scientific  

1. See embolism

2. See thrombus

---

Other Word Forms

Noun Inflected Forms

• blood clots
  plural

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

She thought it was the baby, but a nurse confirmed it was a blood clot, 3 inches across.

From Salon • May 27, 2026

Wembanyama’s career seemed to be in jeopardy, as doctors had discovered a blood clot in his shoulder that forced him to miss the season’s last two months.

From The Wall Street Journal • Apr. 16, 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

A resulting blood clot can completely block blood flow or travel to the heart or brain, triggering a heart attack or stroke.

From Science Daily • Feb. 25, 2026

That is when a blood clot blocks one of the blood vessels taking blood to the muscles in the heart.

From "The Curious Incident of the Dog in the Night-Time" by Mark Haddon