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n. Waste or impure matter: discarded the dross after recycling the wood pulp.

n. The scum that forms on the surface of molten metal as a result of oxidation.

n. Worthless, commonplace, or trivial matter: "He was wide-awake and his mind worked clearly, purged of all dross” ( Vladimir Nabokov).

n. Waste or impure matter

n. Worthless or trivial matter

n. Residue that forms on the surface of a metal from oxidation

n. The impurities in metal

n. A waste product from working with metal

v. To remove dross from.

n. The scum or refuse matter which is thrown off, or falls from, metals in smelting the ore, or in the process of melting; recrement.

n. Rust of metals.

n. Waste matter; any worthless matter separated from the better part; leavings; dregs; refuse.

n. Refuse or impure or foreign matter which separates from a liquid and falls to the bottom or rises to the top, as in wine or oil or in molten metal; sediment; lees; dregs; scum; any refuse or waste matter, as chaff; especially, and now chiefly, the slag, scales, or cinders thrown off from molten metal.

n. In galvano-elect., an alloy of zinc and iron formed in the zinc-bath, partly by the solvent action of the zinc on the iron of the pot, but chiefly from the iron articles dipped, and from the dripping off of the superfluous amalgam as they come from the bath.

n. Figuratively, a worthless thing; the valueless remainder of a once valued thing.

To remove dross from.

To convert (lead) into dross or protoxid by melting in an oxidizing atmosphere. The operation is usually accomplished in a reverberatory furnace.

n. worthless or dangerous material that should be removed

n. the scum formed by oxidation at the surface of molten metals

"The challenge then is to separate the dross from the gold and refine what remains."

waste    waste material    waste product    waste matter   

refuse   

drossy   

recrement    leavings    dregs    refuse   

Cos    Cross    Ross    across    boss    cos    coss    criss-cross    cross    dos   

rubbish    offal    slag    scum    ordure    dregs    cinder    rubble    excrement    recrement