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blood substitute

British

noun

a substance such as plasma, albumin, or dextran, used to replace lost blood or increase the blood volume

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“If this synthetic blood substitute works, it could be absolutely game-changing because it can be freeze-dried, it can be reconstituted on demand, and it’s universal,” journalist Nicola Twilley says.

From Slate • Sep. 1, 2025

The ideal prototype of a blood substitute aims to overcome these limitations.

From Washington Post • Apr. 16, 2022

A protein found in sugar beet could be used as a blood substitute to help tackle the shortage of blood, researchers in Sweden suggest.

From BBC • Nov. 5, 2014

When “True Blood” began, vampires were just coming out of the coffin, hoping to forge a peaceful coexistence beside human beings, thanks to a synthetic blood substitute.

From Salon • Jun. 8, 2012

Bromley Marks, one of the major blood-supplying companies — Big Farma — can develop a blood substitute.

From Time • Jan. 9, 2010

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023