thrombus
noun
throm·bus
ˈthräm-bəs 
plural thrombi
ˈthräm-ˌbī
-ˌbē
-ˌbē
: a clot of blood formed within a blood vessel and remaining attached to its place of origin compare embolus
Examples of thrombus in a Sentence
Recent Examples on the Web
The medical examiner’s office concluded that the death in April of a woman in sheriff’s office custody was caused by a coronary thrombus, or blood clot, due to atherosclerotic and hypertensive cardiovascular disease.
—
Emerson Clarridge, Fort Worth Star-Telegram, 26 Aug. 2025
The clot, or thrombus, is made of fibrin, platelets, white blood cells and some red blood cells.
—Daryl Austin, USA Today, 15 Aug. 2025
About nine out of 10 cats with saddle thrombus have heart disease, though most of them do not show outward signs of it before the clot forms.
—Maria Azzurra Volpe, MSNBC Newsweek, 9 July 2025
After fibrin formation has occurred, a clot (thrombus) develops.3 This complex process can take seconds to two hours.1
2.
—Michael Menna, Verywell Health, 17 Jan. 2025
The manner of Guild’s death was natural and the causes were pulmonary thromboembolus, a blood clot in the lung, and a thrombus in the left popliteal vein, a vein in the leg, according to the coroner.
—Matt Sledge, NOLA.com, 18 Oct. 2020
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Emerson Clarridge, Fort Worth Star-Telegram, 26 Aug. 2025
The clot, or thrombus, is made of fibrin, platelets, white blood cells and some red blood cells.
—Daryl Austin, USA Today, 15 Aug. 2025
About nine out of 10 cats with saddle thrombus have heart disease, though most of them do not show outward signs of it before the clot forms.
—Maria Azzurra Volpe, MSNBC Newsweek, 9 July 2025
After fibrin formation has occurred, a clot (thrombus) develops.3 This complex process can take seconds to two hours.1
2.
—Michael Menna, Verywell Health, 17 Jan. 2025
The manner of Guild’s death was natural and the causes were pulmonary thromboembolus, a blood clot in the lung, and a thrombus in the left popliteal vein, a vein in the leg, according to the coroner.
—Matt Sledge, NOLA.com, 18 Oct. 2020
Cite this Entry
“Thrombus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thrombus. Accessed 30 Oct. 2025.
Copy CitationKids Definition
thrombus
noun
throm·bus
ˈthräm-bəs
plural thrombi
-ˌbī
-ˌbē
: a clot of blood formed within a blood vessel and remaining attached to its place of origin compare embolus
Medical Definition
thrombus
noun
throm·bus
ˈthräm-bəs
: a clot of blood formed within a blood vessel and remaining attached to its place of origin compare embolus
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