a passenger bus operating on tires and having an electric motor that draws power from overhead wires.
Math vs. Maths
Both math and maths are short for the word mathematics. Math is the preferred term in the United States and Canada. Maths is the preferred term in England, Australia, and most other English-speaking places.
Read more in this article about some frequently asked questions and fun facts related to our definitions.
Origin of trolley bus
First recorded in 1910–15
Also called trackless trolley, trolley coach.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019