Con-dŭc'tor, n.

n. [Lat. conductor.]

1Sense 1. One who, or that which, conducts; a leader; a guide; a manager; a director. “Zeal, the blind conductor of the will.” Dryden.

2Sense 2. The person who has general charge of a railroad car or train, receiving the fares or tickets, directing its time of starting from stations, &c. [U. S.] Bartlett.

3Sense 3. (Mus.) The leader or director in the performance of a musical composition.

4Sense 4. (Physics.) A substance capable of forming a medium for the transmission of some other substance or fluid, particularly of heat or electricity; especially, a metallic rod on buildings or in ships, to conduct lightning to the earth or water, and protect from its effects.

5Sense 5. (Surg.) An instrument formerly used in the operation for the stone, for directing the forceps into the bladder. Dunglison.

Prime conductor (Elec.), the largest conductor of an electrical machine, serving to collect, accumulate, or retain the electric fluid.