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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ABO system.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 25 May. 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
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