diffraction grating
English Thesaurus
1. 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 (noun.artifact)
| hypernym | : | optical device, |
| definition | : | a device for producing or controlling light (noun.artifact) |
| hyponym | : | echelon, |
| definition | : | a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset (noun.artifact) |
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