spectrometer n 1: spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer [syn: {mass spectrometer}, {spectrometer}]
Spectrometer \Spec*trom"e*ter\, n. [Spectrum + -meter.] (Physics) A spectroscope fitted for measurements of the luminious spectra observed with it. [1913 Webster]