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embolism

American  
[em-buh-liz-uhm] / ˈɛm bəˌlɪz əm /

noun

  1. Pathology. the occlusion of a blood vessel by an embolus.

  2. intercalation, as of a day in a year.

  3. a period of time intercalated.

  4. (in a Eucharistic service) the prayer following the final petitions of the Lord's Prayer.


embolism British  
/ ˈɛmbəˌlɪzəm /

noun

  1. the occlusion of a blood vessel by an embolus

  2. botany the blocking of a xylem vessel by an air bubble

  3. the insertion of one or more days into a calendar, esp the Jewish calendar; intercalation

  4. RC Church a prayer inserted in the canon of the Mass between the Lord's Prayer and the breaking of the bread

  5. another name (not in technical use) for embolus

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

embolism Scientific  
/ ĕmbə-lĭz′əm /
  1. A mass, such as an air bubble, detached blood clot, or foreign body, that travels in the bloodstream, lodges in a blood vessel, and obstructs or occludes it.

  2. Also called embolus

  3. The obstruction or occlusion of a blood vessel by such a mass.


embolism Cultural  
  1. An obstruction or occlusion of a blood vessel by an air bubble, a detached blood clot, or a foreign body.


Other Word Forms

  • embolismic adjective

Etymology

Origin of embolism

1350–1400; Middle English < Medieval Latin embolismus intercalation < Late Greek embolismós, equivalent to embol- ( embolus ) + -ismos -ism

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Partaking in them is not without risk—ozone therapy, for example, has the potential side effect of something called an air embolism, which can lead to a stroke or heart attack.

From Slate • Mar. 30, 2026

Sue Howell, from Bilston, died from a pulmonary embolism, a clot in the blood vessel connecting the heart with the lungs.

From BBC • Feb. 12, 2026

The actress's death certificate said she had died of a pulmonary embolism and listed rectal cancer as a secondary factor.

From Barron's • Feb. 9, 2026

Physically spent, Roosevelt died from a pulmonary embolism on Jan. 6, 1919, at the age of 60.

From The Wall Street Journal • Dec. 29, 2025

On the other hand, it could have been an embolism, because your blood clots much more easily when you are lying down for a long time, like when you are in hospital.

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