anodised

adjective
  1. treated with a protective oxide coating by anodizing (electrochemical process)
  2. Usage: British spelling; American spelling is 'anodized'; commonly used in manufacturing and materials science
verb
  1. past tense and past participle of anodise; to coat (a metal, typically aluminum) with a protective oxide layer using an electrical process
  2. Usage: British spelling; American spelling is 'anodize'; technical/industrial term

Examples