(Usage strongly discouraged). The terms
cisoid and
transoid are also used to describe the stereochemistry of fused ring systems.
See: s-cis, s-trans
Sources:
Blue Book, p. 478 (https://www.acdlabs.com/iupac/nomenclature/)
PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2204 (https://doi.org/10.1351/pac199668122193)