Meaning of SLAG in English

I. ˈslag, -aa(ə)-, -ai- noun

( -s )

Etymology: Middle Low German slagge; probably akin to Middle High German slage hammer, tool for striking, Old English slēan to strike; probably from the dross resulting from hammering or forging — more at slay


a. : the dross of a metal ; specifically : 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 cinder

b. : a similar substance that floats on molten impure steel during refining, protects the metal from oxidation, and removes unwanted substances chemically

2. : scoriaceous lava from a volcano

3. : a fused or partly fused and usually glassy mass resulting from contact of bases with silica or silicates at high temperatures and often deliberately developed in enameling and glazing

4. : worthless matter : debris

slag accumulations in the bottom of a wash tank

nothing like a brisk walk to drag the slag from your head

II. transitive verb

( slagged ; slagged ; slagging ; slags )

: to free from or convert into slag

III. noun

Usage: chiefly Brit, slang

: a lewd or promiscuous woman : tramp

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.