noun. A grill or network of bars set in a window or door or used as a partition; a grate.

noun. A diffraction grating.

noun. The act of rubbing harshly; the harsh sound caused by the rasping or scraping of hard, rough bodies; the feeling produced by harsh attrition.

Harsh; rasping; fretting; irritating: as, grating sounds; a grating temper.

noun. A partition or frame of parallel or crossing bars; an open latticework of wood or metal serving as a cover or guard, but admitting light, air, etc., as in the fair-weather hatches of a ship, the cover of the mouth of a drain or sewer, etc.

noun. In optics: An arrangement of parallel wires in a plane, designed to produce spectra by diffraction: specifically called a real grating.

noun. A series of fine parallel lines on a surface of glass or polished metal ruled very close together, at the rate of 10,000 to 20,000, or even 40,000, to the inch: distinctively called a diffraction or diffractive grating.

noun. A timber framework consisting of beams which cross one another at right angles to support the foundation of a heavy building in light, loose soil.

noun. In metallurgy, the act of separating large from small ore. See grate, n.

adjective. That grates; making a harsh sound; harsh.

noun. A harsh sound caused by attrition.

noun. A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate.

noun. A system of close equidistant parallel lines or bars, esp. lines ruled on a polished surface, used for producing spectra by diffraction; -- called also diffraction grating.

noun. The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable Lattice used for the flooring of boats.

adjective. harsh and unpleasant

noun. A barrier that has parallel or crossed bars blocking a passage but admitting air.

noun. A frame of iron bars to hold a fire

verb. Present participle of grate.

adjective. unpleasantly harsh or grating in sound

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

noun. a frame of iron bars to hold a fire

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