definition of
conductor

[1] #1 conductor n. [music director, director] the person who leads a musical group. wn

[2] #2 conductor n. a substance that readily conducts e.g. electricity and heat. wn

[3] #3 conductor n. the person who collects fares on a public conveyance. wn

[4] #4 conductor n. a device designed to transmit electricity, heat, etc.. wn