blood group

noun Medicine/Medical.
any of various classes into which human blood can be divided according to immunological compatibility, based on the presence or absence of specific antigens on red blood cells.
Also called blood type.


Origin:
1915–20

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Collins
World English Dictionary
blood group
 
n
Also called: blood type any one of the various groups into which human blood is classified on the basis of its agglutinogens

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

blood group n.

  1. Any of several immunologically distinct, genetically determined classes of human blood that are based on the presence or absence of certain antigens, are clinically identified by characteristic agglutination reactions, and are important with respect to blood transfusions and organ transplantation.

  2. Blood type.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
blood group  
See blood type.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

blood group definition


See blood type.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

blood group

classification of blood based on inherited differences (polymorphisms) in antigens on the surfaces of the red blood cells (erythrocytes). Inherited differences of white blood cells (leukocytes), platelets (thrombocytes), and plasma proteins also constitute blood groups, but they are not included in this discussion.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
They have to go and check the blood group of the husband.
One bank has asked its top people to declare their blood group.
The antibodies involved can be directed against one or more of hundreds of known blood group antigens.
The blood group work may be the first time that investigators had to set a policy on informing subjects.
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