
1) Industrial coating
Found on
https://www.crosswordclues.com/clue/anodizing

Anodizing (also spelled anodising, particularly in the UK and Australia) is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process is called anodizing because the part to be treated forms the anode electrode of an electrical circuit. Anodizing increases corrosion res...
Found on
http://en.wikipedia.org/wiki/Anodizing

a process used to increase the thickness of the natural oxide layer on the surface of metal parts; often utilized in the construction of aluminum reels and parts intended for saltwater use.
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http://howtoflyfish.orvis.com/glossary/beginners-fly-fishing-glossary

method of plating metal for such purposes as corrosion resistance, electrical insulation, thermal control, abrasion resistance, sealing, improving ... [4 related articles]
Found on
http://www.britannica.com/eb/a-z/a/79

Forming a conversion coating on a metal surface by anodic oxidation; most frequently applied to aluminum.
Found on
http://www.encyclo.co.uk/local/20742

Forming a conversion coating on a metal surface by anodic oxidation; most frequently applied to aluminum
Found on
http://www.encyclo.co.uk/local/21115

It is a process of coating aluminium oxide, or alumina, using electrolysis, it makes the surface more resistance to corrosion.
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http://www.vidyagyaan.com/general-knowledge/basic-chemistry-element-terms-a

anodizing, anodising (British) Coating a metal; especially, magnesium or aluminum, with a protective film by chemical or electrolytic means.
Found on
http://www.wordinfo.info/words/index/info/view_unit/993/

Forming or thickening an oxide coating on aluminum by immersing it in an eletrolyte bath and passing a current through the bath, using the aluminum as the anode. The process may be used to increase the protective effect of aluminums transparent natural oxide surface; it may also be given a decorative coloration. plating process in the Tin Mill.
Found on
https://steelforge.com/literature/steelog-the-5000-word-metals-glossary/

An electro-chemical coating for aluminum. Hard, durable, and attractive. Anodized parts are highly corrosion resistant.
Found on
https://www.encyclo.co.uk/local/21137

Process that increases the resistance to corrosion of a metal, such as aluminium, by building up a protective oxide layer on the surface. The natural corrosion resistance of aluminium is provided by a thin film of aluminium oxide; anodizing increases the thickness of this film and thus the corrosion protection. It is so called because the metal...
Found on
https://www.encyclo.co.uk/local/21221

A process of coating aluminum by anodic treatment resulting in a thin film of aluminum oxide of extreme hardness. A wide variety of dye colored coatings are possible by impregnation in process.
Found on
https://www.unifiedalloys.com/resources/glossary/
No exact match found.