- pyroluminescence
- py·ro·luminescence
English syllables. 2014.
English syllables. 2014.
pyroluminescence — |pī(ˌ)rō+ noun Etymology: pyr + luminescence : the characteristic spectral radiation (as produced by vaporized salts in a flame) of a gas or vapor excited by high temperature … Useful english dictionary
Chromism — In chemistry, chromism is a process that induces a change, often reversible, in the colors of compounds. In most cases, chromism is based on a change in the electron states of molecules, especially the π or d electron state, so this phenomenon is … Wikipedia