society > travel > means of travel > a conveyance > vehicle > public service vehicle > [noun] > trolley car or bus (13)
A grooved metallic pulley which travels along, and receives current from, an overhead electric wire, the current being then conveyed by a trolley-pole…
an electric car driven by means of a trolley (see 3).
a trackless passenger vehicle that gets its power from an overhead cable by means of a pole and trolley (see 3); also attributive.