| an optical device for measuring wavelengths, deviation of refracted rays, and angles between faces of a prism, esp. an instrument (prism spectrometer) consisting of a slit through which light passes, a collimator, a prism that deviates the light, and a telescope through which the deviated light is viewed and examined. |
spectrometer spec·trom·e·ter (spěk-trŏm'ĭ-tər)
n.
A spectroscope equipped with scales for measuring wavelengths or indexes of refraction.
spectrometry spec·trom·e·try (spěk-trŏm'ĭ-trē)
n.
The observation and measurement of wavelengths of light or other electromagnetic radiation.