D defs.my
Entry 6 senses Webster, 1913

Conductor

/(kŏn*dŭk"tẽr)/ · Con·duct·or · IPA /kənˈdʌktɚ/
01 n. One who, or that which, conducts; a leader; a commander; a guide; a manager; a director.
  1. 1.
    One who, or that which, conducts; a leader; a commander; a guide; a manager; a director.
    “Zeal, the blind conductor of the will.” Dryden.
  2. 2.
    One in charge of a public conveyance, as of a railroad train or a street car.[U. S.]
  3. 3.
    The leader or director of an orchestra or chorus.(Mus.)
  4. 4.
    A substance or body capable of being a medium for the transmission of certain forces, esp. heat or electricity; specifically, a lightning rod.(Physics)
  5. 5.
    A grooved sound or staff used for directing instruments, as lithontriptic forceps, etc.; a director.(Surg.)
  6. 6.
    Same as Leader.(Arch.) See: Leader
Phrases & compounds
Prime conductor — the largest conductor of an electrical machine, serving to collect, accumulate, or retain the electricity.