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

Other Words from transfusion

transfusional \ tran(t)s-​ˈfyüzh-​nəl How to pronounce transfusion (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 Bluebird estimates that there are as many as 1,500 people with transfusion-dependent beta thalassemia in the United States. Ryan Cross,, 17 Aug. 2022 Worldwide, there have been no reports of transmission of the monkeypox virus through blood transfusion. Megan Molteni, STAT, 7 Aug. 2022 Despite efforts to save him, including a transfusion, Abe died of blood loss less than five hours later. Arkansas Online, 10 July 2022 About 90 percent of patients who received the treatment were able to remain transfusion-free, some for as long as seven years. Ryan Cross,, 10 June 2022 But due to measures like a blood transfusion program that started in the South Texas area in 2020, trauma teams were able to begin working on patients more quickly. Erin Pflaumer, CBS News, 25 May 2022 Tsuk received a life-saving blood transfusion after a blood test revealed her red blood cell count was dangerously low. Kelli Bender,, 21 July 2022 If more donors don’t come forward to give blood, some patients requiring a transfusion may potentially face delays in care. Sam Boyer, cleveland, 24 Dec. 2021 Identifying blood type is important for cats that need to have surgery and may need a blood transfusion, Anderson says. Fionna M. D. Samuels, Scientific American, 23 June 2022 See More

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.

First Known Use of transfusion

1578, in the meaning defined at sense 1

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Time Traveler for transfusion

Time Traveler

The first known use of transfusion was in 1578

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Dictionary Entries Near transfusion



transfusion cell

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Statistics for transfusion

Last Updated

9 Sep 2022

Cite this Entry

“Transfusion.” Dictionary, Merriam-Webster, Accessed 27 Sep. 2022.

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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

More from Merriam-Webster on transfusion

Nglish: Translation of transfusion for Spanish Speakers

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


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