multiphoton process

https://doi.org/10.1351/goldbook.M04054
A process involving interaction of two or more photons with a molecular entity.
See:
biphotonic process
,
two-photon process
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2255 [Terms] [Paper]