Meaning of CONDUCTOR in English

noun Date: 15th century one that conducts: as, guide , a collector of fares in a public conveyance, the leader of a musical ensemble, d. a material or object that permits an electric current to flow easily, a material capable of transmitting another form of energy (as heat or sound), ~ial adjective

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.