A waste product from working with metal.
Worthless or trivial matter.
The impurities in metal.
Waste or impure matter.
Residue that forms on the surface of molten metal from oxidation.
To remove dross from.
The calcined ashes of seaweed, formerly used in glass and iodine manufacture.
Any of several large brown algae seaweeds (order Laminariales).
To gather kelp.