from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A grill or network of bars set in a window or door or used as a partition; a grate.
  • n. A diffraction grating.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. harsh and unpleasant
  • n. A barrier that has parallel or crossed bars blocking a passage but admitting air.
  • n. A frame of iron bars to hold a fire
  • v. Present participle of grate.

from the GNU version of the Collaborative International Dictionary of English

  • adj. That grates; making a harsh sound; harsh.
  • n. A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate.
  • n. 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.
  • n. The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable Lattice used for the flooring of boats.
  • n. A harsh sound caused by attrition.

from The Century Dictionary and Cyclopedia

  • Harsh; rasping; fretting; irritating: as, grating sounds; a grating temper.
  • n. The act of rubbing harshly; the harsh sound caused by the rasping or scraping of hard, rough bodies; the feeling produced by harsh attrition.
  • n. 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.
  • n. In optics: An arrangement of parallel wires in a plane, designed to produce spectra by diffraction: specifically called a real grating.
  • n. 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.
  • n. 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.
  • n. In metallurgy, the act of separating large from small ore. See grate, n.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. unpleasantly harsh or grating in sound
  • 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
  • n. a frame of iron bars to hold a fire
  • n. a barrier that has parallel or crossed bars blocking a passage but admitting air


Sorry, no etymologies found.



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