English dictionary
diffraction grating
/d/I/'fr/&/k/S//@/n_'gr/eI/t/I//N/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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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 gratingSource: WordNet 3.0