grating

adj. scraping, abrading; irritating; oppressive; making a harsh or abrasive noise, discordant

n. network of parallel metal bars or wires, grill, grid, grate

v. rub or scrape against; make a harsh sound; irritate, affect unpleasantly

A grating is any regularly spaced collection of essentially identical, parallel, elongated elements. Gratings usually consist of a single set of elongated elements, but can consist of two sets, in which case the second set is usually perpendicular to the first (as illustrated). When the two sets are perpendicular, this is also known as a grid.
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(p. pr. &. vb. n.)
of Grate
  

(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.
  

(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 harsh sound caused by attrition.
  

(a.)
That grates; making a harsh sound; harsh.
  

Noun
1. a barrier that has parallel or crossed bars blocking a passage but admitting air
(synonym) grate
(hypernym) barrier
(hyponym) grille, radiator grille
2. a frame of iron bars to hold a fire
(synonym) grate
(hypernym) framework, frame, framing
(part-holonym) stove, kitchen stove, range, kitchen range, cooking stove
(derivation) grate
3. 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
(synonym) diffraction grating
(hypernym) optical device
(hyponym) echelon
Adjective
1. unpleasantly harsh or grating in sound; "a gravelly voice"
(synonym) gravel, gravelly, rasping, raspy, rough
(similar) cacophonous, cacophonic

Noun
1. a frame of iron bars to hold a fire
(synonym) grating
(hypernym) framework, frame, framing
(part-holonym) stove, kitchen stove, range, kitchen range, cooking stove
2. a harsh rasping sound made by scraping something
(hypernym) noise
3. a barrier that has parallel or crossed bars blocking a passage but admitting air
(synonym) grating
(hypernym) barrier
(hyponym) grille, radiator grille
Verb
1. furnish with a grate; "a grated fireplace"
(hypernym) supply, provide, render, furnish
(derivation) grating
2. gnaw into; make resentful or angry; "The unjustice rankled her"; "his resentment festered"
(synonym) eat into, fret, rankle
(hypernym) annoy, rag, get to, bother, get at, irritate, rile, nark, nettle, gravel, vex, chafe, devil
3. reduce to small shreds or pulverize by rubbing against a rough or sharp perforated surface; "grate carrots and onions"; "grate nutmeg"
(hypernym) rub
(derivation) grater
4. make a grating or grinding sound by rubbing together; "grate one's teeth in anger"
(synonym) grind
(hypernym) break up, fragment, fragmentize, fragmentise
(hyponym) gnash
(entail) rub
5. scratch repeatedly; "The cat scraped at the armchair"
(synonym) scrape
(hypernym) rub
(hyponym) paw