electroless From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences Definitionsadjective(of a metal plating process) Without the use of an external electric current. Related wordsSynonymsplatingnickelelectrodelessfluxlesssolutionlessplasmalessmetallessleadlessweldlesscopperlesssolderlesscurrentlessslaglesschargelessironlessplugless References Wiktionary — electroless Wikipedia — electroless