- An antigenic substance that occurs only in some individuals of a species, such as the blood group antigens of humans. For specific isoantigens of blood groups, see the Blood Groups Appendix.
- Sometimes used as a synonym of alloantigen.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.