leadedPronunciation: /ˈlɛdɪd/Translate leaded | into German | into Italian | into Spanish Definition of leaded adjective 1(of windowpanes or a roof) framed, covered, or weighted with lead:Georgian-style leaded windows 2(of petrol) containing tetraethyl lead: leaded fuel 3 Printing (of print) having the lines separated by spaces. leaded in other Oxford dictionaries Definition of leaded in the US English dictionary