"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 (v.)
"denigrate," by 1971, from slag (n.) in a secondary sense of "worthless person" (1788). Related: Slagged; slagging.
例文
1. This material is variously termed ash,clinker,cinders or slag .
この材料には、灰、スラグ、スラグ、スラグなどの異なる名前があります。
2.All bands slag off their record companies.It 's just the way it is.
すべてのバンドが自分のレコード会社を罵倒する。
3.She was arrested and charged with being a common slag .
彼女は逮捕され、売春を業として告発された。
4.In some cases the slag can be disposed of usefully.
スラグが役に立つことがある。
5.Millions of tons of slag now go into building roads each year.