What does "conductor" mean?

Conductor: One in charge of a public conveyance, as of a railroad train or a street car. [U. S.]

Additional senses

  1. 2.(Mus.) The leader or director of an orchestra or chorus.
  2. 3.(Physics) A substance or body capable of being a medium for the transmission of certain forces, esp. heat or electricity; specifically, a lightning rod.
  3. 4.(Surg.) A grooved sound or staff used for directing instruments, as lithontriptic forceps, etc.; a director.
  4. 5.(Arch.) Same as Leader. Prime conductor (Elec.), the largest conductor of an electrical machine, serving to collect, accumulate, or retain the electricity.

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