trans·​fu·​sion | \ tran(t)s-ˈfyü-zhən How to pronounce transfusion (audio) \

Definition of transfusion

1 : an act, process, or instance of transfusing especially : the process of transfusing fluid (such as blood) into a vein or artery
2 : something transfused

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Other Words from transfusion

transfusional \ tran(t)s-​ˈfyüzh-​nəl How to pronounce transfusional (audio) , -​ˈfyü-​zhə-​nᵊl \ adjective

Did You Know?

When blood transfusions were first attempted by Europeans in the early 1600s, they were met with skepticism, since the established practice was to bleed patients, not transfuse them with blood. Some patients were transfused with animal blood, and so many died as a result that by 1700 transfusions had been widely outlawed. Not until 1900 were the major blood groups (A, B, AB, and O) recognized, making transfusions safe and effective.

Examples of transfusion in a Sentence

Without a transfusion her chances of survival were slim.

Recent Examples on the Web

She was rushed into surgery and received a blood transfusion while police questioned Dudley and his three roommates. Sarah Horner, Twin Cities, "St. Paul man admits assaulting woman found naked, bloodied in his bathroom; rape charge dropped," 19 July 2019 The family has been in and out of the hospital since Addyson was diagnosed in October, with doctors attempting different treatments and transfusions. Jane Stueckemann, Houston Chronicle, "Woodlands Mothers of Multiples group helps navigate challenges of twins, triplets," 15 July 2019 And many researchers now are trying to create cell types for therapeutic purposes, like creating blood cells in a dish to be used in transfusions. Megan Thielking, STAT, "Scientists capture how a single cell develops into an embryo," 26 Apr. 2018 From monitoring clinical trials and approving medicines and vaccines, to ensuring the safety of blood transfusions, medical devices, groceries, and more, the U.S. Food and Drug Administration (FDA) is one of the nation’s most vital watchdogs. Charles Piller, Science | AAAS, "Exclusive: FDA enforcement actions plummet under Trump," 2 July 2019 About one in every five to seven hospital patients needs a blood transfusion, and there is no substitute for human blood. Kyra Haas, azcentral, "Arizona needs more blood donors during summer months; you can help," 10 June 2019 One problem is that the diffident Ashe—who died at 49 in 1993 of complications of AIDS contracted from a blood transfusion—was for many years more focused on fighting apartheid 8,000 miles away in South Africa than on the black struggle at home. Edward Kosner, WSJ, "‘Arthur Ashe’ Review: A Hard Road to Glory," 17 Aug. 2018 Of 17 million blood transfusions in 2017, 37 patients died as a direct result, according to the Food and Drug Administration. Mike Hixenbaugh, NBC News, "No one should die from a blood transfusion. So why did it happen at MD Anderson, the nation's top cancer hospital?," 26 June 2019 But recipients can’t take just any blood: For a transfusion to be successful, the patient and donor blood types must be compatible. Alex Fox, Science | AAAS, "Top stories: The science of false confessions, transforming blood types, and Brazil’s war on drugs," 14 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'transfusion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of transfusion

1578, in the meaning defined at sense 1

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Statistics for transfusion

Last Updated

10 Aug 2019

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Time Traveler for transfusion

The first known use of transfusion was in 1578

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More Definitions for transfusion


trans·​fu·​sion | \ trans-ˈfyü-zhən How to pronounce transfusion (audio) \

Kids Definition of transfusion

1 : the process of passing a fluid (as blood) into a vein of a person or animal
2 : the act of giving something a fresh supply The club needs a transfusion of new members.


trans·​fu·​sion | \ tran(t)s-ˈfyü-zhən How to pronounce transfusion (audio) \

Medical Definition of transfusion

1 : the process of transfusing fluid (as blood) into a vein or artery
2 : something transfused

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More from Merriam-Webster on transfusion

Rhyming Dictionary: Words that rhyme with transfusion

Spanish Central: Translation of transfusion

Nglish: Translation of transfusion for Spanish Speakers

Britannica English: Translation of transfusion for Arabic Speakers Encyclopedia article about transfusion

Comments on transfusion

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a period when something is suspended

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