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

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Severe dehydration in children can also be treated with a plasma transfusion (transferring the liquid portion of blood into a person).1 Gentle wound care with topical antibiotics may be recommended to aid with healing. William Truswell, Verywell Health, 28 Feb. 2025 His program has included building a home laboratory, taking more than 100 pills each day and undergoing blood plasma transfusions, at least one of which came from his son. Richard Gunderman, The Conversation, 24 Feb. 2025 Grant’s extensive treatment and multiple infections have called for blood and platelet transfusions, ongoing infusions and continued hospitalizations. Ramona Sentinel, San Diego Union-Tribune, 4 Mar. 2025 Treatment includes therapy to correct anemia, which may involve correcting nutritional deficiencies, blood, transfusion, or medication. Christine L. Larsen, Verywell Health, 26 Feb. 2025 See All Example Sentences for transfusion

Word History

First Known Use

1578, in the meaning defined at sense 1

Time Traveler
The first known use of transfusion was in 1578

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Cite this Entry

“Transfusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transfusion. Accessed 26 Mar. 2025.

Kids Definition

transfusion

noun
1
: an act, process, or instance of transfusing
especially : the process of transfusing a fluid and especially blood into a blood vessel
2
: something transfused

Medical Definition

transfusion

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

More from Merriam-Webster on transfusion

Last Updated: - Updated example sentences
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