joint effect

https://doi.org/10.1351/goldbook.15840
Simultaneous or successive effect of factors of diverse types (chemical, physical, biological) on an organism.
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1248 [Terms] [Paper]