- Cell taking part in blood vessel formation.
- Primordial mesenchymal tissue from which embryonic blood cells and vascular endothelium are differentiated.
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 723 (https://doi.org/10.1515/pac-2015-1202)