mass spectrometer vs spectrometer

mass spectrometer and spectrometer both are nouns.

Word	Noun	Adjective	Verb	Adverb
mass spectrometer	Yes	No	No	No
spectrometer	Yes	No	No	No

As nouns, mass spectrometer and spectrometer are synonyms defined as:

mass spectrometer and spectrometer: spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer

mass spectrometer (noun)	spectrometer (noun)
spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer	spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer