stereogenic center 

https://doi.org/10.1351/goldbook.08210
Atom within a molecule bearing groups such that interchanging any two of them leads to a stereoisomer of the original molecule.
Source:
PAC, 2022, 94, 353. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 2021)) on page 509 [Terms] [Paper]