"dirt, dregs," Old English dros "the scum thrown off from metals in smelting," from Proto-Germanic *drohs- (source also of Middle Dutch droes, Dutch droesem, Middle Low German dros [..]

Dross [N]the impurities of silver separated from the one in the process of melting ( Proverbs 25:4 ; 26:23 ; Psalms 119:119 ). It is also used to denote the base metal itself, probably before it is sm [..]

The molten matter produced during laser cutting that sticks to the bottom edges of the cut.

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 [..]

The drop-shaped adherence at the bottom cutting edge is called dross.

This is a build-up of waste material, removed during the cutting process, which sticks to the underside of the profile. This is preventable by correctly setting the cutting process variables.

The scum, waste, or impurities that form on the surface.

(n) worthless or dangerous material that should be removed(n) the scum formed by oxidation at the surface of molten metals

Refuse or impurities such as whale blubber.

A mass of solid impurities that is considered a waste product from molten metal.