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slag

 - 6 dictionary results

slag

1  [slag] noun, verb, slagged, slag⋅ging.
Use slag in a Sentence
–noun
1. Also called cinder. the more or less completely fused and vitrified matter separated during the reduction of a metal from its ore.
2. the scoria from a volcano.
3. waste left over after the re-sorting of coal.
–verb (used with object)
4. to convert into slag.
5. Metallurgy. to remove slag from (a steel bath).
–verb (used without object)
6. to form slag; become a slaglike mass.
Origin:
1545–55; < MLG slagge; c. G Schlacke dross, slag; see slack 2

Related forms:
slag⋅a⋅ble, adjective
slag⋅a⋅bil⋅i⋅ty, noun
slagless, adjective
slag⋅less⋅ness, noun

slag

2  [slag]
–noun
British Slang. an abusive woman.
Origin:
1780–90; orig. an argot word for a worthless person or a thug; perh. identical with slag 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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sco·ri·a   (skôr'ē-ə, skōr'-)   
n.   pl. sco·ri·ae (skôr'ē-ē', skōr'-)

  1. Geology Porous cinderlike fragments of dark lava. Also called cinders, slag.

  2. Metallurgy The refuse of a smelted metal or ore; slag. Also called cinder.


[Middle English, dross, from Latin scōria, from Greek skōriā, from skōr, excrement, dung; see sker-3 in Indo-European roots.]
sco'ri·a'ceous (-ā'shəs) adj.
slag   (slāg)   
n.  

  1. The vitreous mass left as a residue by the smelting of metallic ore.

  2. See scoria.

tr. & intr.v.   slagged, slag·ging, slags
To change into or form slag.

[Low German slagge, from Middle Low German.]
slag'gy adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

slag 
1552, from M.L.G. slagge (Ger. Schlacke) "splinter flying off when metal is struck," related to O.H.G. slahan "to strike, slay" (see slay). Verbal slang meaning "denigrate" is from 1971, from noun sense of "worthless person" (1788).
Online Etymology Dictionary, © 2001 Douglas Harper
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Science Dictionary
slag   (slāg)  Pronunciation Key 
The vitreous mass left as a residue by the smelting of metallic ore. It consists mostly of the siliceous and aluminous impurities from the iron ore.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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