electropolish

[ ih-lek-troh-pol-ish ]
/ ɪˌlɛk troʊˈpɒl ɪʃ /

verb (used with object)

to give a smooth surface to (metal) by dissolving projecting irregularities at the anode of an electrolytic cell.

Origin of electropolish

First recorded in 1955–60; electro- + polish