autotransfusion

noun

au·​to·​trans·​fu·​sion ˌȯ-tō-tran(t)s-ˈfyü-zhən How to pronounce autotransfusion (audio)
: return of autologous blood to the patient's own circulatory system

Word History

Etymology

auto- + transfusion

First Known Use

1916, in the meaning defined above

Time Traveler
The first known use of autotransfusion was in 1916

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Cite this Entry

“Autotransfusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/autotransfusion. Accessed 7 Feb. 2026.

Medical Definition

autotransfusion

noun
au·​to·​trans·​fu·​sion -tran(t)s-ˈfyü-zhən How to pronounce autotransfusion (audio)
: return of blood lost by or taken from a patient to his or her own circulatory system
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