Source : Webster's Revised Unabridged Dictionary (1913)

Spectrometry \Spec*trom"e*try\, n. (Physics)
   Art or process of using the spectrometer, or of measuring
   wave lengths of rays of a spectrum. -- {Spec`tro*met"ric}, a.

Source : WordNet®

spectrometry
     n : the use of spectroscopes to analyze spectra [syn: {spectroscopy},
          {spectroscopic analysis}, {spectrum analysis}, {spectrographic
         analysis}]