Definition of "spectrophotometry" [spec•tro•pho•tom•e•try]

• The quantitative analysis of electromagnetic spectra by use of a spectrophotometer; especially in order to determine the structure or quantity of a substance (noun)

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• "IATL ran the samples through a number of tests including polarized light microscopy, analytical transmission electron microscopy and atomic absorption spectrophotometry."
• "My understanding is that the spacing of the hues has perceptual intervals, but hues themselves are wavelengths, of course, and determined by spectrophotometry."
• "Gaia will be, in my opinion, the greatest of all, observing stars down to 12th magnitude, and doing astrometry, radial velocity and spectrophotometry – all made to a higher precision."