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Meaning of GRATING

Pronunciation:  'greyting

WordNet Dictionary
  1. [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
  2. [n]  a frame of iron bars to hold a fire
  3. [n]  a barrier that has parallel or crossed bars blocking a passage but admitting air
  4. [adj]  unpleasantly harsh or grating in sound; "a gravelly voice"

GRATING is a 7 letter word that starts with G.


 Synonyms: cacophonic, cacophonous, diffraction grating, grate, gravel, gravelly, rasping, raspy, rough
 See Also: barrier, cooking stove, echelon, frame, framework, framing, furnace, grille, kitchen range, kitchen stove, optical device, radiator grille, range, stove



Webster's 1913 Dictionary
  1. \Grat"ing\, n. [See 2d Grate.]
    1. A partition, covering, or frame of parallel or cross bars;
       a latticework resembling a window grate; as, the grating
       of a prison or convent.
    2. (Optics) A system of close equidistant and parallel lines
       lines or bars, especially lines ruled on a polished
       surface, used for producing spectra by diffraction; --
       called also {diffraction grating}.
    3. pl. (Naut.) The strong wooden lattice used to cover a
       hatch, admitting light and air; also, a movable Lattice
       used for the flooring of boats.
  2. \Grat"ing\, a. [See {Grate} to rub harshy.]
    That grates; making a harsh sound; harsh. -- {Grat"ing*ly},
  3. \Grat"ing\, n.
    A harsh sound caused by attrition.
  4. \Grat"ing\, n. (Optics)
    A system of close equidistant parallel lines or bars, esp.
    lines ruled on a polished surface, used for producing spectra
    by diffraction. Gratings have been made with over 40,000 such
    lines to the inch, but those with a somewhat smaller number
    give the best definition.
Thesaurus Terms
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