trolley bus

noun
a passenger bus operating on tires and having an electric motor that draws power from overhead wires.
Also called trackless trolley, trolley coach.


Origin:
1910–15

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Encyclopedia Britannica
Encyclopedia

trolley bus

vehicle operated on the streets on rubber tires and powered by electricity drawn from two overhead wires by trolley poles. It is distinct from a trolley car, which runs on rails rather than on tires and is thus a form of streetcar.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
By then the gasoline and trolley bus era had replaced the cable and trolley car era.
Sequentially, line phase current flows into the trolley bus during each conduction period of the bridge rectifiers.
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