electrodeposit I. \ ̷ ̷| ̷ ̷ ̷ ̷ at electro-+\noun Etymology:electr- + deposit (n.) : a deposit (as metal or rubber) formed on or at an electrode by electrolysis (as in electroplating or electroforming) II. transitive verb : to deposit (as nickel, copper, or rubber) by electrical action, especially electrolysis