For courses in health and physical education, expenses for supplies are qualified expenses only if related to athletics. This deduction is for expenses paid or incurred during the tax year. You claim the deduction on line 23 of Form 1040 (PDF) or line 16 of Form 1040A (PDF).
In astronomy, the term spectrophotometry refers to the measurement of the spectrum of a celestial object in which the flux scale of the spectrum is calibrated as a function of wavelength, usually by comparison with an observation of a spectrophotometric standard star, and corrected for the absorption of light by the Earth's atmosphere.
Definition of spectrometer. 1 : an instrument used for measuring wavelengths of light spectra. 2 : any of various analytical instruments in which an emission (as of particles or radiation) is dispersed according to some property (as mass or energy) of the emission and the amount of dispersion is measured nuclear magnetic resonance spectrometer.