conformer

https://doi.org/10.1351/goldbook.C01262
One of a set of stereoisomers, each of which is characterized by a conformation corresponding to a distinct potential energy minimum.
See also: rotamer
Source:
PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2204 (https://doi.org/10.1351/pac199668122193)