grating

Nouns

  • (n) a barrier that has parallel or crossed bars blocking a passage but admitting air grate,
  • (n) a frame of iron bars to hold a fire grate,
  • (n) 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 diffraction grating,

Synonyms

grate rasping raspy gravelly scratchy rough diffraction grating

Words of close approximity

gratis
gratify
gratingly