Main Entry: con·duc·tor

Pronunciation: \kən-ˈdək-tər\

Function: noun

Date: 15th century

: one that conducts: as a : guide b : a collector of fares in a public conveyance c : the leader of a musical ensemble d (1) : a material or object that permits an electric current to flow easily — compare insulator, semiconductor (2) : a material capable of transmitting another form of energy (as heat or sound)

— con·duc·to·ri·al \ˌkän-ˌdək-ˈtȯr-ē-əl, kən-\ adjective