electroplate Syllabification: (e·lec·tro·plate)Pronunciation: /iˈlektrəˌplāt/Definition of electroplate verb [with object] (usually as noun electroplating) coat (a metal object) by electrolytic deposition with chromium, silver, or another metal. noun electroplated articles. Derivatives electroplater noun electroplate in other Oxford dictionaries Definition of electroplate in the British & World English dictionary