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Any of several substances on the surface of red blood cells that induce a strong antigenic response in individuals lacking the substance.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Biochemistry) an agglutinogen commonly found in human blood: it may cause a haemolytic reaction, esp during pregnancy or following transfusion of blood that does not contain this agglutinogen. Full name: rhesus factor
[C20: named after the rhesus monkey, in which it was first discovered]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
any of a group of antigens on the surface of red blood cells, those having inherited such antigens being designated Rh + (Rh positive) and those lacking them, a much smaller group, being designated Rh− (Rh negative) : transfused or fetal Rh + blood may induce a severe reaction in an Rh− individual.
[1940–45; so called because first found in the blood of rhesus monkeys]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
An antigen present in red blood cells, used in the classification of human blood. The blood cells of most people contain an Rh factor. For a blood transfusion to be successful, the blood of the donor must match that of the recipient—both must have or must be missing the Rh factor.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Rh factor- Named for the rhesus monkeys used in research to identify blood types.
See also related terms for research.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
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|Noun||1.||Rh factor - a blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia|
antigen - any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)
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