Slag Slag (sl[a^]g), n. [Sw. slagg, or LG. slacke, whence G. schlacke; originally, perhaps, the splinters struck off from the metal by hammering. See {Slay}, v. t.] 1. The dross, or recrement, of a metal; also, vitrified cinders. [1913 Webster]

2. The scoria of a volcano. [1913 Webster]

3. (Metal.) A product of smelting, containing, mostly as silicates, the substances not sought to be produced as matte or metal, and having a lower specific gravity than the latter; -- called also, esp. in iron smelting, {cinder}. The slag of iron blast furnaces is essentially silicate of calcium, magnesium, and aluminium; that of lead and copper smelting furnaces contains iron. [Webster 1913 Suppl.]

{Slag furnace}, or {Slag hearth} (Metal.), a furnace, or hearth, for extracting lead from slags or poor ore.

{Slag wool}, mineral wool. See under {Mineral}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Cinder — Cin der (s[i^]n d[ e]r), n. [AS. sinder slag, dross; akin to Icel. sindr dross, Sw. sinder, G. sinter, D. sintel; perh. influenced by F. cendre ashes, fr. L. cinis. Cf. {Sinter}.] 1. Partly burned or vitrified coal, or other combustible, in which …   The Collaborative International Dictionary of English

  • cinder — (n.) O.E. sinder dross of iron, slag, from P.Gmc. *sindran (Cf. O.S. sinder, O.N. sindr, M.L.G., M.Du. sinder, O.H.G. sintar, Ger. Sinter), from PIE root *sendhro coagulating fluid. Initial s changed to c under influence of Fr. cendre …   Etymology dictionary

  • cinder — cìnder m DEFINICIJA reg. zast. upaljač, fajercajg ETIMOLOGIJA njem. Zünder …   Hrvatski jezični portal

  • cinder — [n] hot ash clinker, ember, hot coal, soot; concept 260 …   New thesaurus

  • cinder — ► NOUN ▪ a piece of burnt coal or wood that has stopped giving off flames but still has combustible matter in it. DERIVATIVES cindery adjective. ORIGIN Old English …   English terms dictionary

  • cinder — [sin′dər] n. [ME & OE sinder, dross of iron, slag < IE base * sendhro , coagulating fluid > Ger sinter, dross of iron, stalactite, sintern, to trickle, coagulate, Czech śadra, gypsum] 1. slag, as from the reduction of metallic ores 2. a… …   English World dictionary

  • Cinder — For other uses, see Cinder (disambiguation). Example of a cinder, found at Amboy Crater A cinder is a pyroclastic material. Cinders are extrusive igneous rocks. Cinders are similar to pumice, which has so many cavities and is such low density… …   Wikipedia

  • cinder — UK [ˈsɪndə(r)] / US [ˈsɪndər] noun [countable, usually plural] Word forms cinder : singular cinder plural cinders a) a small piece of something that has been burnt almost completely burnt to a cinder (= burnt very badly): The roast was burnt to a …   English dictionary

  • cinder — noun ADJECTIVE ▪ glowing, hot, red ▪ a fireplace full of glowing red cinders CINDER + NOUN ▪ path, track …   Collocations dictionary

  • cinder — cin|der [ sındər ] noun count usually plural a small piece of something that has been burned almost completely: burned to a cinder (=burned very badly): The roast was burned to a cinder. a. cinders plural the burned pieces left after a fire has… …   Usage of the words and phrases in modern English

  • cinder — noun (countable usually plural) a very small piece of burnt wood, coal etc: a cold hearth full of cinders | burnt to a cinder (=completely burnt): The cake was burnt to a cinder …   Longman dictionary of contemporary English

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