ABO system

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noun

Physiology. a classification of human blood based on the presence on the surface of red blood cells of one or both of two specific antigens, designated A and B, or their absence, designated O: every person has one of four possible inherited blood types, A, B, AB, or O, and has antibodies circulating in the blood that clump with any antigen that is not of that type, persons with type O thus being able to donate blood devoid of the antigens for transfusion to types A, B, and AB but able to receive only blood of type O. Abbreviation: ABO

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Origin of ABO system

First recorded in 1940–45

Words nearby ABO system

abortion pill, abortive, abortive transduction, abortus, abortus Bang ring test, ABO system, aboudikro, abought, Aboukir Bay, aboulia, abound

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use ABO system in a sentence

There were no deaths on scheduled commercial aviation flights in 2014, in a system that operates 68,000 flights a day.
Annoying Airport Delays Might Prevent You From Becoming the Next AirAsia 8501|Clive Irving|January 6, 2015|DAILY BEAST
She fills her characters up—strong women beating back against a sexist system—with so much heart.
Oscars 2015: The Daily Beast’s Picks, From Scarlett Johansson to ‘Boyhood’|Marlow Stern|January 6, 2015|DAILY BEAST
A hundred ultra-wealthy liberal and conservative donors have taken over the political system.
The 100 Rich People Who Run America|Mark McKinnon|January 5, 2015|DAILY BEAST
“Stay in formation,” a sergeant from the ceremonial unit said over a public address system to the cops along the street.
Funeral Protest Is Too Much for NYPD Union Boss|Michael Daly|January 5, 2015|DAILY BEAST

Both parties are now equal opportunity offenders when it comes to gaming the system.
The 100 Rich People Who Run America|Mark McKinnon|January 5, 2015|DAILY BEAST
Sweden excluded British goods, conformably to the continental system established by Bonaparte.
The Every Day Book of History and Chronology|Joel Munsell
As Spain, however, has fallen from the high place she once held, her colonial system has also gone down.
Tobacco; Its History, Varieties, Culture, Manufacture and Commerce|E. R. Billings.
The reformers of the earlier period were not indifferent to the need for centralized organization in the banking system.
Readings in Money and Banking|Chester Arthur Phillips
Accordingly, the question "How far does the note issue under the new system seem likely to prove an elastic one?"
Readings in Money and Banking|Chester Arthur Phillips
Thanks to Berthier's admirable system, Bonaparte was kept in touch with every part of his command.
Napoleon's Marshals|R. P. Dunn-Pattison

British Dictionary definitions for ABO system

ABO system

noun

a system for classifying human blood on the basis of the presence or absence of two antigens on the red cell membrane: there are four such blood types (A, B, AB, and O)

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

Medical definitions for ABO system

ABO system

A classification system for human blood that identifies four major blood types based on the presence or absence of two antigens, A and B, on red blood cells. The four blood types (A, B, AB, and O, in which O designates blood that lacks both antigens) are important in determining the compatability of blood for transfusion.

Scientific definitions for ABO system

ABO system

[ ā′bē-ō′ ]