isoabsorption point [obsolete]

https://doi.org/10.1351/goldbook.I03259
The use of this term, equivalent to isosbestic point, is not recommended.
Source:
PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2249 (https://doi.org/10.1351/pac199668122223)