Title: umbilicus
Long Title: IUPAC Gold Book - umbilicus
DOI: 10.1351/goldbook.16263
Status: current

Definition
Feature marking the point in the abdominal wall where the umbilical cord entered the fetus.

Related Terms
- fetus: https://goldbook.iupac.org//terms/view/10718
- umbilical cord: https://goldbook.iupac.org//terms/view/11339

Source
- PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 817 (https://doi.org/10.1515/pac-2015-1202)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/16263/html
- json: https://goldbook.iupac.org/terms/view/16263/json
- xml: https://goldbook.iupac.org/terms/view/16263/xml

Citation: Citation: 'umbilicus' 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.16263
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: 2026-05-08T04:00:24+00:00