anodize

[an-uh-dahyz]
verb (used with object), anodized, anodizing. Chemistry.
to coat a metal, especially magnesium or aluminum, with a protective film by chemical or electrolytic means.
Also, especially British, anodise.


Origin:
1930–35; anode + -ize

anodization, noun
Dictionary.com Unabridged
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World English Dictionary
anodize or anodise (ˈænəˌdaɪz)
 
vb
to coat (a metal, such as aluminium or magnesium) with a protective oxide film by electrolysis
 
anodise or anodise
 
vb

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
Electrochemically grow the anodized membrane, switch electrolyte and poles to grow silver, etch a tad to remove surface connects.
Gel skins and anodized pictures of sock monkeys are today's offerings.
There's also a gigantic swing-arm, pipes running underneath the metal floor,
  and anodized red wrenches.
Nonstick, scratch-resistant anodized aluminum cookware is a good choice.
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