
1) Cast-off material 2) Chaff 3) Coal of little value 4) Dregs 5) Exclusively Anglo word 6) Exclusively Saxon word 7) Impurities 8) Impurity 9) Impurity in metal 10) Inferior leftovers 11) Inferior material 12) Kind of waste 13) Metal debris 14) Metal scum 15) Metal waste 16) Metallic refuse 17) Metallic scum
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https://www.crosswordclues.com/clue/dross

1) Cinder 2) Impurity 3) Scoria 4) Scum 5) Slag
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https://www.crosswordclues.com/clue/dross

- worthless material that should be removed
- the scum formed by oxidation at the surface of molten metals
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Dross is a mass of solid impurities floating on a molten metal or dispersed in the metal, such as in wrought iron. It forms on the surface of low-melting-point metals such as tin, lead, zinc or aluminium or alloys by oxidation of the metal(s). With wrought iron, hammering and later rolling removed some dross. With tin and lead the dross can be rem...
Found on
http://en.wikipedia.org/wiki/Dross

• (n.) Waste matter; any worthless matter separated from the better part; leavings; dregs; refuse. • (n.) Rust of metals. • (n.) The scum or refuse matter which is thrown off, or falls from, metals in smelting the ore, or in the process of melting; recrement.
Found on
http://thinkexist.com/dictionary/meaning/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.
Found on
http://www.encyclo.co.uk/local/20620

Oxide and other contaminants which form on the surface of molten solder.
Found on
http://www.encyclo.co.uk/local/20870
Dross noun [ Anglo-Saxon
dros , from
dreósan to fall. See
Dreary .]
1. The scum or refuse matter which is thrown off, or falls from, metals in smelting the ore, or in the process of melting; recrement.
2. Rust of metals. [ R.]
Addison. 3. Waste m...
Found on
http://www.encyclo.co.uk/webster/D/125

Partly oxidised scum floating on the top of molten metal. After skimming off may be processed to recover its metal value.
Found on
http://www.metalbulletin.com/Glossary.html

Sediment which settles in bottom of the ZINC pot on the galvanize line. Also top dross, which floats on surface of pot and is skimmed off. A different type of dross also occurs on the top of the zinc pot, which is skimmed off on a regular time frame.
Found on
https://steelforge.com/literature/steelog-the-5000-word-metals-glossary/

waste matter; refuse. · a waste product taken off molten metal during smelting, essentially metallic in character. · coal of little value.
Found on
https://www.infoplease.com/dictionary/dross
[Battery manufacturing] A scum formed on the surface of molten metal. Dross refers to the lead oxides, copper, antimony, and other elements that float to the top of the molten lead.
Found on
https://www.osha.gov/SLTC/etools/battery_manufacturing/index.html
No exact match found.