10734 IUPAC Gold Book - fontanelle 10.1351/goldbook.10734 10734 current 1 Any of several soft spots in specific locations on the skull of the newborn where the bones have not yet fused and the brain is covered by skin and a tough membrane. cranial suture https://goldbook.iupac.org/terms/view/10564 membrane https://goldbook.iupac.org/terms/view/11555 PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 757 (https://doi.org/10.1515/pac-2015-1202) https://goldbook.iupac.org/terms/view/10734/html https://goldbook.iupac.org/terms/view/10734/json https://goldbook.iupac.org/terms/view/10734/plain Citation: 'fontanelle' 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.10734 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. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-05-10T12:51:42+00:00