anchoring villus

https://doi.org/10.1351/goldbook.10382

Chorionic villus that is attached to the region of the endometrium (see also decidua) that interacts with the trophoblast during development of the placenta.

Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 722 [Terms] [Paper]