Title: parasitic twin
Long Title: IUPAC Gold Book - parasitic twin
DOI: 10.1351/goldbook.11069
Status: current

Definition
Smaller of unequal conjoined twins.

Related Terms
- autosite: https://goldbook.iupac.org//terms/view/10446
- conjoined twins: https://goldbook.iupac.org//terms/view/10555

Source
- PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 790 (https://doi.org/10.1515/pac-2015-1202)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/11069/html
- json: https://goldbook.iupac.org/terms/view/11069/json
- xml: https://goldbook.iupac.org/terms/view/11069/xml

Citation: Citation: 'parasitic twin' 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.11069
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.
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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: 2026-07-15T09:21:10+00:00