: the basic system of antigens of human blood behaving in heredity as an allelic unit to produce any of the ABO blood groups

Examples of ABO system in a Sentence

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.
Most people are aware of the ABO system and the rhesus system for classifying blood. Sam Walters, Discover Magazine, 17 Nov. 2022

Word History

First Known Use

1938, in the meaning defined above

Time Traveler
The first known use of ABO system was in 1938

Dictionary Entries Near ABO system

Cite this Entry

“ABO system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ABO%20system. Accessed 1 Dec. 2024.

Medical Definition

ABO system

noun
: the basic system of antigens of human blood behaving in heredity as an allelic unit to produce any of the ABO blood groups
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!