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slag
Longman Dictionary of Contemporary English
slag
I.noun
COLLOCATIONS FROM OTHER ENTRIES
slag heap
EXAMPLES FROM CORPUS
▪ And the slag is normally tapped off first.
▪ Basic slag is another by-product of industrial processes that has become scarce due to changed methods.
▪ Here and there were traces of rubble and slag.
▪ Now calcium silicate is the slag.
II.verb
EXAMPLES FROM CORPUS
▪ She wouldn't just dump you and slag you off to your mates.
The Collaborative International Dictionary
Slag

Slag \Slag\, v. i. & t. [imp. & p. p. Slagged; p. pr. & vb. n. Slagging.] (Metal.) To form, or form into, a slag; to agglomerate when heated below the fusion point.

Slag

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.

  2. The scoria of a volcano.

  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.

    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.

Douglas Harper's Etymology Dictionary
slag

"refuse from smelting," 1550s, from Middle Low German slagge (German Schlacke) "splinter flying off when metal is struck," related to Old High German slahan "to strike, slay" (see slay (v.)).

slag

"denigrate," by 1971, from slag (n.) in a secondary sense of "worthless person" (1788). Related: Slagged; slagging.

Wiktionary
slag

n. 1 Waste material from a coal mine. 2 scum that forms on the surface of molten metal. 3 impurity formed and separated out when a metal is smelted from ore; vitrify cinders. vb. 1 (context transitive English) To produce slag. 2 (context intransitive English) To become slag; to agglomerate when heated below the fusion point. 3 (context transitive with "off" English) To talk badly about; to malign or denigrate (someone). 4 (context intransitive Australia slang English) To spit.

WordNet
slag
  1. n. the scum formed by oxidation at the surface of molten metals [syn: scoria, dross]

  2. [also: slagging, slagged]

Wikipedia
Slag

Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore. Slag is usually a mixture of metal oxides and silicon dioxide. However, slags can contain metal sulfides and elemental metals. While slags are generally used to remove waste in metal smelting, they can also serve other purposes, such as assisting in the temperature control of the smelting, and minimizing any re-oxidation of the final liquid metal product before the molten metal is removed from the furnace and used to make solid metal.

Slag (disambiguation)

Slag (a liquid) is a by-product of smelting ore. Slag, as a liquid, is distinguished from dross, which is a solid.

Welding slag (a solid) is a form of slag produced as a byproduct of some arc welding processes.

Slag may also refer to:

Slag (play)

Slag is a 1970 play by British writer David Hare.Original cast: Lynn Redgrave, Anna Massey, and Barbara Ferris. Originally staged by the Royal Court. London

Slag is a biting satire in which the only characters are the three teachers of a tiny isolated girls' school. The play begins with a mutual vow reminiscent of the vow beginning the play Lysistrata in which Greek women vow to deny men sex to protest the Peloponnesian War. The three women teachers mutually pledge to abstain from sexual intercourse, in protest against the dominance and abusive treatment of women by men, epitomized in the slur against women as " slags." Conflicts among the teachers' different visions of radical feminism, different motivations, and different interpretations of and commitment to the vow become the grist for duplicitous dominant and abusive acts among them and distracts them from their teaching. Dominance and Feminism are ridiculed alike, while the number of pupils dwindles to zero in the resulting dysfunctional environment, leaving the three teachers to go their separate ways.

Slag was a breakthrough play for David Hare. Reputedly written by Hare in three days time, working out of the back of a van, it won for him the Evening Standard (London) Award for most promising new playwright and launched his prolific and successful career as a playwright.

Category:1970 plays Category:English plays Category:Plays by David Hare

Slag (welding)

Welding slag is a form of slag, or vitreous material produced as a byproduct of some arc welding processes, most specifically shielded metal arc welding (also known as stick welding), submerged arc welding, and flux-cored arc welding. Slag is formed when flux, the solid shielding material used in the welding process, melts in or on top of the weld zone. Slag is the solidified remaining flux after the weld area cools.

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Usage examples of "slag".

As it lay on the table before him, he realized that it was nothing but a common aerolite, with the appearance of black slag.

Some assayers use a little powdered fluor-spar to assist the fusion of refractory slags.

He started out across the landing field with Chai, running over the black scars of old flames, stumbling on calcined rock and ridges of glassy slag like cheap obsidian, flawed and stained.

Malone muttered something about the culchies looking for a chance to slag them, sending them back to Dublin in a hearse.

The product is fused with more arsenic under a slag, consisting mainly of borax.

In this case a layer of fused common salt floating on the slag, so as to protect it from the air and furnace gases, is a distinct advantage.

The slag when fused should be liquid and homogeneous, and not too corrosive on the crucible.

Similarly, fused slags damp and filter through a cupel, but the molten metal not damping it withdraws itself into a button, which is retained.

Detach the slag, replace in the crucible, and, when fused, add a mixture of 20 grams of litharge and 1 gram of charcoal.

I thought it was a hooly player from the Rivals whose talent was the short field by the slag pile.

When these oxides are present an additional quantity of flour must be used, and precautions must be taken to prevent reoxidation of the slag by the furnace gases.

They could take a crucial world like Sylene or Riparious and turn it into slag.

It was the living men she feared, Weese and Ser Gregor Clegane and Lord Tywin Lannister himself, who kept his apartments in Kingspyre Tower, still the tallest and mightiest of all, though lopsided beneath the weight of the slagged stone that made it look like some giant half-melted black candle.

It is made up of unburnt anthracite and small lumps of slag proper together with some buttons of metallic tin.

Easily oxidisable metals such as zinc, iron, antimony and tin, will go mainly into the slag, and, if the proportion of the slag is large, very little will go into the metal.