grating

Adjective

• unpleasantly harsh or grating in sound
  • a gravelly voice
    

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

• a frame of iron bars to hold a fire

• a barrier that has parallel or crossed bars blocking a passage but admitting air

Related words

• Synonyms: 
  gravelly , rasping , raspy , rough , scratchy , diffraction grating , grate