— spectrometric /spek'treuh me"trik/ , adj. — spectrometry , n.
/spek trom"i teuhr/ , n. Optics.
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.
[ 1870-75; SPECTRO- + -METER ]