- (n.) 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, especially 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.
- (v.i.&t.) To form or form into, a slag; to agglomerate when heated below the fusion point.
- Same as Basic slag, above.
- (v.t.) The dross or recrement, of a metal; also, vitrified cinders.
- (v.t.) The scoria of a volcano.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). slag. Retrieved September 22, 2026, from http://smartdefine.org/slag/definitions/2062738 |
| Chicago | Webster's. 2011. "slag" http://smartdefine.org/slag/definitions/2062738 (accessed September 22, 2026). |
| Harvard | Webster's 2011, slag, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/slag/definitions/2062738>. |
| MLA | Webster's. "slag" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/slag/definitions/2062738> |