grating

When something is grating, it's extremely harsh and irritating, like the grating sound of your alarm clock early on a Monday morning.

As an adjective, grating is particularly good for describing unpleasant sounds, like the grating voice of someone who's nagging you. As a noun, a grating is an object in the shape of a grid, with parallel bars forming regular squares or rectangles. This kind of grating is often used as a cover for an opening, like the grating that covers a storm drain in the gutter or an exhaust fan in the ceiling.

Primary Meanings of grating

1.
adj
unpleasantly harsh or grating in sound
2.
n
a barrier that has parallel or crossed bars blocking a passage but admitting air
3.
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
Full Definitions of grating
1

adj unpleasantly harsh or grating in sound

Synonyms:
gravelly, rasping, raspy, rough, scratchy
cacophonic, cacophonous
having an unpleasant sound
2

n a barrier that has parallel or crossed bars blocking a passage but admitting air

Synonyms:
grate
Types:
grille, radiator grille
grating that admits cooling air to car's radiator
Type of:
barrier
a structure or object that impedes free movement

n a frame of iron bars to hold a fire

Synonyms:
grate
Type of:
framework
a structure supporting or containing something
3

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

Synonyms:
diffraction grating
Types:
echelon
a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset
Type of:
optical device
a device for producing or controlling light

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