omphalosite

https://doi.org/10.1351/goldbook.11038

Lesser developed of two monozygotic twins that failed to separate completely during embryogenesis.

Note: The omphalosite is joined to the other twin (the autosite) by the umbilical vessels, receives its blood supply from the placenta, and is incapable of survival after separation from the placenta.
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 787 [Terms] [Paper]
Citation: 'omphalosite' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.11038 RIS BibTex EndNote
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