Grating

Grating
Grating Grat"ing, n. [See 2d Grate.] 1. A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent. [1913 Webster]

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 {diffraction grating}.

Note: Gratings have been made with over 40,000 such lines to the inch, but those with a somewhat smaller number give the best definition. They are used, e. g., to produce monochromatic light for use in optical instruments such as spectrophotometers. [Webster 1913 Suppl.]

3. pl. (Naut.) The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable Lattice used for the flooring of boats. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • grating — Ⅰ. grating [1] ► ADJECTIVE 1) sounding harsh and unpleasant. 2) irritating. DERIVATIVES gratingly adverb. Ⅱ. grating [2] ► NOUN …   English terms dictionary

  • grating — grating1 [grāt′iŋ] n. [< GRATE2 + ING] 1. a framework of parallel or latticed bars set in a window, door, etc. 2. parallel bars or crossbars, sometimes curved or patterned, in a framework set in a sidewalk, ship s hatchway, etc. 3. DIFFRACTION …   English World dictionary

  • Grating — Grat ing, a. [See {Grate} to rub harshy.] That grates; making a harsh sound; harsh. {Grat ing*ly}, adv. [1913 Webster] …   The Collaborative International Dictionary of English

  • Grating — Grat ing, n. A harsh sound caused by attrition. [1913 Webster] …   The Collaborative International Dictionary of English

  • Gräting — Gräting, Rost oder Gitterwerk zum Bedecken der Luken auf Kriegsschiffen; auch in den Schiffsmaschinen und Kesselräumen als Fußbodenbelag gebräuchlich …   Meyers Großes Konversations-Lexikon

  • Gräting — Gräting, auf Schiffen ein Gitterwerk aus Holz oder Eisen, das zum Bedecken der Luken oder als Tritt dient. Im Panzerdeck werden die Luken mit Luftdurchlaß durch Panzergrätings geschlossen. T. Schwarz …   Lexikon der gesamten Technik

  • Gräting — Gräting, Rost oder Gitterwerk aus Holz oder Metall zum Zudecken von Luken auf Kriegsschiffen …   Kleines Konversations-Lexikon

  • grating — index harsh, provocative Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • grating — (adj.) annoying, irritating, 1560s, figurative use of prp. adjective from GRATE (Cf. grate) (v.) …   Etymology dictionary

  • grating — [adj] irritating; scraping annoying, disagreeable, discordant, displeasing, dissonant, dry, grinding, harsh, harsh sounding, hoarse, irksome, jarring, offensive, rasping, raucous, rough, shrill, squeaky, strident, stridulent, stridulous,… …   New thesaurus

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