stereoisomerism

https://doi.org/10.1351/goldbook.S05983
isomerism due to differences in the spatial arrangement of atoms without any differences in connectivity or bond multiplicity between the isomers.
Source:
PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2219 (https://doi.org/10.1351/pac199668122193)