Bible Dictionary · D
Dross
The impurities of silver separated from the one in the process of melting (Prov 25:4; Prov 26:23; Ps 119:119). It is also used to denote the base metal itself, probably before it is smelted, in Isa 1:22, Isa 1:25.
From Easton’s Bible Dictionary (1897), by Matthew George Easton.