Entry 1 sense Webster, 1913

Spectrometer

/spĕk-trŏm′ĭ-tər/ · Spec·trom·e·ter · IPA /spɛkˈtɹɑm.ɪ.təɹ/

01 n. A spectroscope fitted for measurements of the luminious spectra observed with it.

1.
A spectroscope fitted for measurements of the luminious spectra observed with it.(Physics)