Relating to the measurement of the way light is spread into different colors.
The word spectrometric is about studying light and colors in a very careful and scientific way.
Examples:
The spectrometric study showed all the colors in the light.
She used a spectrometric tool to look at the light.
The spectrometric test was very interesting.
I don't understand all this spectrometric stuff!
The spectrometric machine could see colors no one else could.
The spectrometric experiment was very exciting.