coat (a metal, especially aluminium) with a protective oxide layer by an electrolytic process in which the metal forms the anode
unless you intentionally make ordinary aluminium oxide thicker by anodizing it, it is easily scratched
Today’s NYT Connections Answers Mar 28, #291 - Daily Updates & Hints
Today’s Wordle Answer Mar 28 #1013- NYT Wordle Hints & Updates
NYT Mini Crossword Answers Today - The Mini for Mar 28 Solved