anodize

from WordNet (r) 3.0 (2006)

anodize
    v 1: coat a metal with an oxide coat [syn: {anodize}, {anodise}]

from The Collaborative International Dictionary of English v.0.48

anodize \anodize\ v.
   1. to coat a metal with an oxide coat by electrolytic action
      at an anode; -- used especially to coat aluminum.
      [WordNet 1.5]