spectroscopy vs spectrometry

spectroscopy and spectrometry both are nouns.

Word	Noun	Adjective	Verb	Adverb
spectroscopy	Yes	No	No	No
spectrometry	Yes	No	No	No

As nouns, spectroscopy and spectrometry are synonyms defined as:

spectroscopy and spectrometry: the use of spectroscopes to analyze spectra

Other synonyms of spectroscopy include spectrographic analysis, spectroscopic analysis, spectrum analysis.

spectroscopy (noun)	spectrometry (noun)
the use of spectroscopes to analyze spectra	the use of spectroscopes to analyze spectra