n. | 1. | A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; |
2. | (Optics) A system of close equidistant parallel lines or bars, esp. lines ruled on a polished surface, used for producing spectra by diffraction; - called also | |
3. | (Naut.) The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable Lattice used for the flooring of boats. | |
a. | 1. | That grates; making a harsh sound; harsh. |
n. | 1. | A harsh sound caused by attrition. |
Noun | 1. | grating - a barrier that has parallel or crossed bars blocking a passage but admitting air Synonyms: grate |
2. | grating - a frame of iron bars to hold a fire Synonyms: grate | |
3. | grating - 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 Synonyms: diffraction grating | |
Adj. | 1. | grating - unpleasantly harsh or grating in sound; "a gravelly voice" |