histocompatibility antigen

histocompatibility antigen

noun Immunology.
any antigen on the surface of tissue or blood cells that provokes the immune response and subsequent rejection when transplanted to an individual of a different antigenic type, thus determining whether the tissues or organs of a donor and recipient are histocompatible.

Origin:
1965–70

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Collins
World English Dictionary
histocompatibility antigen
 
n
a molecule occurring on the surface of tissue cells that can take several different forms. The differences between histocompatibility antigens are inherited and determine organ transplant rejection

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

histocompatibility antigen n.
Any of various antigens on the surface of cell membranes that serve to identify a cell as self or nonself and are used to determine whether a tissue graft or transfusion will be accepted by a recipient.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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