trolleybus

/ˈtrɑlibʌs/
noun
  1. An electric bus that gets power from overhead wires using a pole or poles.
    • She waited at the stop for the trolleybus to take her to the museum.
    • Many cities use trolleybuses to reduce air pollution in crowded downtown areas.
    • The trolleybus quietly glided down the street without any exhaust fumes.