diffraction grating

/dəˌfrækʃən ˌgreɪdɪŋ/
IPA guide

Other forms: diffraction gratings

Definitions of diffraction grating
  1. noun
    optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum
    synonyms: grating
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    types:
    echelon
    a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset
    type of:
    optical device
    a device for producing or controlling light
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