disapproval If you describe something as dross, you mean that it is of very poor quality or has no value. I go through phases where everything I write is just dross. = rubbish
The waste metal created by the action of a plasma cutter Dross may solidify on the underside edges of your work piece and will have to be removed by chipping, grinding or in an acid bath
the impurities of silver separated from the one in the process of melting (Prov 25: 4; 26: 23; Ps 119: 119) It is also used to denote the base metal itself, probably before it is smelted, in Isa 1: 22, 25