- (a.) That grates; making a harsh sound; harsh.
- (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 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.
- (p.pr.&.vb.n.) of Grate.
- (n.) A harsh sound caused by attrition.
- (n.) A partition, covering or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent.
- (n.) A system of close equidistant parallel lines or bars, especially 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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). grating. Retrieved September 20, 2026, from http://smartdefine.org/grating/definitions/2013508 |
| Chicago | Webster's. 2011. "grating" http://smartdefine.org/grating/definitions/2013508 (accessed September 20, 2026). |
| Harvard | Webster's 2011, grating, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/grating/definitions/2013508>. |
| MLA | Webster's. "grating" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/grating/definitions/2013508> |