deactivation

https://doi.org/10.1351/goldbook.D01528
Any loss of energy by an excited molecular entity.
See:
emission
,
energy transfer (in photochemistry)
,
internal conversion
,
radiationless deactivation
,
radiationless transition
,
radiative transition
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2235 [Terms] [Paper]