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trolleybus

noun [C]
 
 
/ˈtrɒl.i.bʌs/ US  /ˈtrɑː.li-/

Definition

a public transport vehicle with rubber tyres that travels along ordinary roads in towns and is driven by electricity supplied from a wire above the road: The trolleybus does not run on tracks.Buses, trams and coaches
(Definition of trolleybus noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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