Medical Dictionary
3 ENTRIES FOUND:

grating

noun grat·ing \ˈgrāt-iŋ\

Medical Definition of GRATING

:  a system of close equidistant and parallel lines or bars ruled on a polished surface to produce spectra by diffraction—called also diffraction grating
April 21, 2015
omnipotent Hear it
having unlimited authority or influence
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