Word.ws English Dictionary

How to use slag in a sentence

28 example sentences · noun, verb

Slag means waste material from a mine. Example: “There is a lot of copper oxide, but I can remove that by melting everything and slagging it off.”

Examples of slag by meaning

nounWaste material from a mine.

  • After the big village, the scenery had returned to grass and woodland, but this had now given way to ugly mounds of discarded slag.2011, Vivienne Dockerty, A Woman Undefeated, page 54

nounScum that forms on the surface of molten metal.

  • He leans out over the track and skims slag off the top of the boiling steel, risking what is called “catching a flyer,” which occurs when hot metal explodes out of the mold, spraying everyone in the vicinity.2009, John Hoerr, Monongahela Dusk, page 255

nounImpurities formed and separated out when a metal is smelted from ore; vitrified cinders.

  • Buried within the Mediterranean littoral are some seventy to ninety million tons of slag from ancient smelting, about a third of it concentrated in Iberia.2006, Edwin Black, chapter 2, in Internal Combustion
  • Consequently, mounds of large ‘cakes’ of slag are often found near the smelting sites of the Late Bronze Age, as for example at Ramsau in Austria (Doonan et al. 1996).2008, Barbara S. Ottaway, Ben Roberts, “The Emergence of Metalworking”, in Andrew Jones, editor, Prehistoric Europe: Theory and Practice...

nounHard aggregate remaining as a residue from blast furnaces, sometimes used as a surfacing material.

  • During blast furnace operations, the plant operator pays careful attention to the slag chemistry (both composition and variability) as slag behavior is a major consideration in ensuring the quality of hot metal (molten iron).2006, Jan R. Prusinski, “44: Slag as a Cementitious Material”, in Joseph F. Lamond, James H. Pielert, editors, Significance of Tests and...
  • All these properties are determined by slag composition and its temperature.2010, Yuri N. Toulouevski, Ilyaz Y. Zinurov, Innovation in Electric Arc Furnaces, Springer, page 16

verbTo talk badly about; to malign or denigrate (someone).

  • If you slag off the other person, then—to the extent that your child identifies with that person as their parent—you are slagging off a part of them.2010, Courtenay Young, Help Yourself Towards Mental Health, page 344
  • Rather than wait for her to start slagging my mother, I would disappear for a couple of days and inevitably, because I was getting no love at home, I began to stray once again.2011, John Davies, Slings and Arrows, page 109

More sentences with slag

  • There is a lot of copper oxide, but I can remove that by melting everything and slagging it off.From the entry slag off
  • The Donald didn’t seem convinced and started slagging off the London mayor, Sadiq Khan.2025 July 28, John Crace, “Sidekick Starmer can’t get a word in as The Donald dominates world’s most one-sided double act”, in The…. From the entry slag off
  • The slag was reportedly dumped at the site by members of a nearby temple.2015 December 21, Wei-han Chen, “Tonnes of toxic slag found dumped in Chiayi County”, in Taipei Times, →ISSN, →OCLC, archived from the…. From the entry Yenshui
  • The proper response to slagging is to laugh at oneself while “getting back” at one′s slagger.1999, Elizabeth A. Throop, Net Curtains and Closed Doors: Intimacy, Family, and Public Life in Dublin, page 54. From the entry slagger
  • Which grotesque auld hing-oot will the shrivelled post-menopausal slag want tae shaft?1994 [1993], Irvine Welsh, Trainspotting, London: Minerva, →ISBN, page 252. From the entry shaft
  • The number 86 is a kayf up West where all the slag in Town hang out.1969, Frank Norman, Norman's London, page 28. From the entry kayf
  • A scow laden with dead horse , and another laden with scobs and foundry slag, floated by.1930, Bernard Levi Jefferson, Paul Landis, Arthur Wellesley Secord, Literary Studies for Rhetoric Classes, page 631. From the entry scobs
  • You ponce, you slag, pop it in the onion bag.2002, Fat Les (band), Who Invented Fish and Chips? (song). From the entry onion bag
  • Also, there are no obvious differences in the proportion of tewel pieces with attached slag in the two furnace types.1987, Ian Hodder, The Archaeology of Contextual Meanings, →ISBN, page 5. From the entry tewel
  • Slag flows away from the molten pool and is less likely to be trapped in the metal during uphand welding.1967, W. J. Patton, The science and practice of welding, page 29. From the entry uphand
  • The base of a xylolite floor must be free from lime, slag, gypsum and other materials reacting with magnesia-binding agents.1965, V. A. Vorobyev, Building Materials, page 212. From the entry xylolite
  • Now for a quick lamp over the slag.1962, Derek Raymond [Robin Cook], The Crust On Its Uppers, London: Serpent's Tail, published 2000, →ISBN, page 21. From the entry rosie
  • As the Lothian Plain is reached, collieries and slag heaps begin to appear, although much of the surrounding country remains unspoiled.1952 January, H. A. Vallance, “The Waverley Route”, in Railway Magazine, page 16. From the entry Lothian
  • Reaction to my book, Arms, has been predictable: the NRA slagged it, without reading a word, on the basis of a second-hand summary.2015 December 21, “Excerpt: How Canadians helped create the NRA”, in The Toronto Star. From the entry fudd
  • Well, that’s what the slag does.1962, Derek Raymond [Robin Cook], The Crust On Its Uppers, London: Serpent's Tail, published 2000, →ISBN, page 21. From the entry rosie
  • To cut carbon, a steel industry by-product (known as ground granulated blast-furnace slag) has been incorporated into the pier, as an eco-friendlier alternative, to traditional concrete.2023 February 8, “Network News”, in RAIL, number 976, page 25, photo caption. From the entry eco-friendly
  • The topping of stone walls all around the Sheffield area, which looks like large, crude, black lumps of Aero chocolate, is in fact furnace slag mostly from cementation furnaces.2016, Ian D. Rotherham, Secret Sheffield. From the entry crozzle
  • The nuragic period occupation level in the chief's dwelling produced pig, cow, and sheep bones along with pottery, fragments of bronze objects, a crucible and some slag.2007, Stephen L. Dyson; Robert J. Rowland, Jr., Archaeology and History in Sardinia from the Stone Age to the Middle Ages: Shepherds…. From the entry Nuragic
  • The ointment comprises “olive oil lees mixed with silver slag, sulphur, pitch from Mount Ida, wax rich in oil, sea-squill, as well, and strong hellebore and black bitumen.”2006, Janet Lembke, From Grass to Gardens: How to Reap Bounty from a Small Yard, page 189. From the entry hellebore
  • It was about this time that the first experiments were made (in Germany) with basic slag, a material which had hitherto been regarded as a worthless by-product of steel manufacture.1911, “History of English Agriculture”, in 1911 Encyclopædia Britannica. From the entry by-product

Meaning of slag

  1. noun Waste material from a mine.
  2. noun Scum that forms on the surface of molten metal.
  3. noun Impurities formed and separated out when a metal is smelted from ore; vitrified cinders.

Full definition of slag

Questions about slag in a sentence

How do you use slag in a sentence?
Slag is used as a noun and verb. For example: “There is a lot of copper oxide, but I can remove that by melting everything and slagging it off.”
What is a short sentence with slag?
“Well, that’s what the slag does.”
What does slag mean?
Slag means waste material from a mine.

Source and license

Adapted from Wiktionary: slag (page history and authors) and the entries each sentence comes from. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws chose the sentences, left out offensive ones and quotations older than 1900, and marked the word in each. Wiktionary data of 2026-09-02.

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Cite this page: “How to use slag in a sentence.” Word.ws, https://word.ws/sentences/slag. Based on Wiktionary, CC BY-SA 4.0.