grit


grit
   a measure of fineness for abrasive materials such as sandpaper, sanding belts, or the finer materials used to polish optical surfaces. Originally the grit number was the number of holes in a standard screen; if the screen had, say, 240 holes, then the particles that would pass through the screen were described as 240 grit. However, very fine abrasive particles (such as 500 to 1000 grit) are too small to be screened in this way, so the measure is defined by tables giving the average particle size in micrometers for each grit size. A table of grit sizes is provided.

Dictionary of units of measurement. 2015.

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  • Grit — may refer to:* Grit (newspaper), a U.S. periodical founded as a newspaper in 1882 * Grit (album), by Celtic fusion musician Martyn Bennett * Grits, a corn based food common in the Southern United States * GRITS, a Christian hip hop group * Grit… …   Wikipedia

  • grit — grit; grit·less; grit·ti·ly; grit·ti·ness; grit·tle; grit·ty; ne·grit·ic; ne·grit·oid; …   English syllables

  • Grit — Grit, n. [OE, greet, greot, sand, gravel, AS. gre[ o]t grit, sant, dust; akin to OS griott, OFries. gret gravel, OHG. grioz, G. griess, Icel. grj[=o]t, and to E. groats, grout. See {Groats}, {Grout}, and cf. {Grail} gravel.] 1. Sand or gravel;… …   The Collaborative International Dictionary of English

  • Grit — steht für: Grit, Synonym für Gastrolithen (Magensteine) allgemeiner für: groben Sand oder Sandstein ähnlich: Geflügelgrit, granulates Futtermittel aus kleinen Steinen und Kalk Grit (Vorname), weiblicher Vorname Grit (Ort), Ort in Virginia/USA… …   Deutsch Wikipedia

  • grit´ti|ly — grit|ty «GRIHT ee», adjective, ti|er, ti|est. 1. of or containing grit; like grit; sandy. 2. Informal, Figurative. courageous; plucky: »The gritty, grinning captain of paratroopers had fought f …   Useful english dictionary

  • grit|ty — «GRIHT ee», adjective, ti|er, ti|est. 1. of or containing grit; like grit; sandy. 2. Informal, Figurative. courageous; plucky: »The gritty, grinning captain of paratroopers had fought f …   Useful english dictionary

  • Grit — Grit, v. t. [imp. & p. p. {Gritted}; p. pr. & vb. n. {Gritting}.] To grind; to rub harshly together; to grate; as, to grit the teeth. [Collog.] [1913 Webster] …   The Collaborative International Dictionary of English

  • Grit — (Millstone grit, Mühlensandstein, Coal grit), der grobkörnige Sandstein der Steinkohlenformation in England und Nordamerika, insbes. die dem flözleeren Sandstein in Deutschland entsprechenden, mit Schieferton abwechselnden Sandsteine, die sich… …   Meyers Großes Konversations-Lexikon

  • grit — [grit] n. [with Early ModE vowel shortening < ME grete < OE greot, akin to Ger griess IE base * ghrēu , to rub hard over, crumble > GREAT] 1. rough, hard particles of sand, stone, etc. 2. the texture of stone, with regard to the fineness …   English World dictionary

  • Grit — (gr[i^]t), v. i. To give forth a grating sound, as sand under the feet; to grate; to grind. [1913 Webster] The sanded floor that grits beneath the tread. Goldsmith. [1913 Webster] …   The Collaborative International Dictionary of English

  • Grit — (Coat Grit, engl., spr. Kohtgrit), der grobkörnige Kohlensandstein in England …   Pierer's Universal-Lexikon


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