Scum, v. t. [imp. & p. p. Scummed p. pr. & vb. n. Scumming ]
1. To take the scum from; to clear off the impure matter from the surface of; to skim.
You that scum the molten lead. --Dryden & Lee.
2. To sweep or range over the surface of. [Obs.]
Wandering up and down without certain seat, they lived by scumming those seas and shores as pirates. --Milton.
1. The extraneous matter or impurities which rise to the surface of liquids in boiling or fermentation, or which form on the surface by other means; also, the scoria of metals in a molten state; dross.
Some to remove the scum as it did rise. --Spenser.
2. refuse; recrement; anything vile or worthless.
The great and innocent are insulted by the scum and refuse of the people. --Addison.
Scum, v. i. To form a scum; to become covered with scum. Also used figuratively.
Life, and the interest of life, have stagnated and scummed over. --A. K. H. Boyd.
n 1: worthless people [syn: trash]
2: a film of impurities or vegetation that can form on the
surface of a liquid
[also: scumming, scummed]