English Reference

Word

transfusion

Phoneticstrans·fu·sion

US/tɹænsˈfjuʒən/

UK/tɹænsfjˈuːʒən/

Definition

n. the process of putting blood or other fluids directly into a person's body using a needle. Doctors use this when someone has lost a lot of blood or is very sick.

n. the medical procedure of transferring blood or blood components from one person into the circulatory system of another. Often involves the administration of plasma or saline solutions in broader clinical contexts.

Examples

“The patient needs a blood transfusion immediately.”

“After the car accident, the surgical team performed an emergency transfusion to replace the blood the victim had lost.”

“Advances in screening technology have significantly reduced the risk of disease transmission during a transfusion, making the procedure a cornerstone of modern trauma medicine and oncology.”

Examples

simple

“The patient needs a blood transfusion immediately.”

contextual

“After the car accident, the surgical team performed an emergency transfusion to replace the blood the victim had lost.”

complex

“Advances in screening technology have significantly reduced the risk of disease transmission during a transfusion, making the procedure a cornerstone of modern trauma medicine and oncology.”

Usage

Countable when referring to the specific medical event; uncountable when discussing the general practice or process.

Real-World Examples

“The discovery could make it much easier to find extremely rare AnWj-negative patients and donors and protect them from potentially dangerous transfusion reactions.”
ScienceDaily · 19 Sept 2026
“I was losing a lot of blood and close to needing a transfusion.”
The Guardian · 16 Sept 2026

Etymology

Borrowed from Latin transfūsiō.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domain

Medicine

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

englishreference.com/q/transfusion

English Reference