(p. pr. &. vb. n.) of Grate
(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 and parallel lines lines or
bars, especially 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.
(a.) That grates; making a harsh sound; harsh.
(n.) A harsh sound caused by attrition.
