Definition of "leading-in" [leading-in]

• The act or process of putting together the parts of a stained-glass window having lead cames. (noun)

The Century Dictionary (Public Domain)

• "Even now, I think being asked point-blank with no leading-in conversation, “So, where are you from?” is a bit rude."
• ""All we've got to do now is to hook up our leading-in wire and ground wire and we'll be all set," said Bob."
• "Bob's room, and drop the insulated leading-in wire through."