Title: fetal tolerance Long Title: IUPAC Gold Book - fetal tolerance DOI: 10.1351/goldbook.13148 Status: current Definition Lack of rejection of a fetal allograft carrying paternal major histocompatibility complex (MHC) and minor histocompatibility antigens that differ from those of the mother. Related Terms - allograft: https://goldbook.iupac.org//terms/view/12863 - major histocompatibility complex (MHC): https://goldbook.iupac.org//terms/view/13430 - minor histocompatibility antigens: https://goldbook.iupac.org//terms/view/13460 - rejection: https://goldbook.iupac.org//terms/view/13645 Source - PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1166 (https://doi.org/10.1351/PAC-REC-11-06-03) Other Outputs - html: https://goldbook.iupac.org/terms/view/13148/html - json: https://goldbook.iupac.org/terms/view/13148/json - xml: https://goldbook.iupac.org/terms/view/13148/xml Citation: Citation: 'fetal tolerance' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.13148 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-08-02T17:41:06+00:00