isoemissive point
@W06659@, wavenumber or frequency at which the total intensity of emission of light by a sample does not change during a chemical reaction or physical change. The terms @IT07404@ and @I03314@ are sometimes used.
This term may be misleading because it does not specifically refer to light emission.
PAC, 2007, 79, 293. (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 358 [Terms] [Paper]