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

n. A diffraction grating.

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.

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.

adj. That grates; making a harsh sound; harsh.

n. A harsh sound caused by attrition.

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.

Harsh; rasping; fretting; irritating: as, grating sounds; a grating temper.

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.

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

"A further main advantage of Rowland's grating is that it is now no longer scratched on plane surfaces, but on spherical concave surfaces with a radius of say 3 metres, so that real images are produced of luminous lines without the need for the insertion of lenses."

cacophonous    cacophonic   

framework   

concave grating    transmission grating    rutherford grating    diffraction grating    grating deck    echelon diffraction grating    nobert grating    grating spectrum   

grate   

diffraction grating   

harsh    rubbing    grind    scroop    screak    squeak    scratch    rasp    stridulation    creaky   

grate   

abating    annotating    awaiting    baiting    berating    crating    creating    dating    debating    deflating   

intensifier    handrail    grille    railing    saltspoonful    grillwork    snuffboxes    hooch    banister