[{"id":"03199222-n","lexname":"noun.artifact","members":[{"lemma":"diffraction grating","sense":{"id":"diffraction_grating%1:06:00::"},"poskey":"n"},{"lemma":"grating","sense":{"id":"grating%1:06:02::"},"pronunciation":[{"value":"ˈɡɹeɪtɪŋ"}],"poskey":"n"}],"definition":["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"],"ili":"i52885","wikidata":["Q653294"],"partOfSpeech":"n","hypernym":["03856861-n"],"hyponym":["03268385-n"]}]