dross

About 0.33 uses per million words.

Meaning

1. noun Waste or impure matter.
2. noun Residue that forms as a scum on the surface of molten metal from oxidation.
3. noun The impurities in metal.
4. noun A waste product from working with metal.
5. noun Worthless or trivial matter.
6. noun Residual raw opium left in an opium pipe which can be recycled for further sale or use.
7. verb To remove dross from.

Similar words

impurity scoria slag scum refuse residue dairy toxic milk diesel

Often followed by

of and in is from that to which or

Word family

drosses drossier drossiest drossy