met·al·lize transitive verb alsomet·al·ize\ˈmed.əlˌīz, -etəl-\ (-ed/-ing/-s) Etymology:metal (I) + -ize 1.: to treat with a metal: as a.: to coat with a metal (as by spraying) < metallize filament lamps > b.: to impregnate with metal or a metallic compound 2.: to combine (as an azo dye) with a metal