chirotopic

Also contains definition of: achirotopic
https://doi.org/10.1351/goldbook.C01065
The description of an atom (or point, group, face, etc. in a molecular model) that resides within a @[email protected] environment. One that resides within an @[email protected] environment has been called achirotopic.
Source:
PAC, 1996, 68, 2193. (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2203 [Terms] [Paper]