taximeter
/ˈtæksɪmɛtər/Definitions
1. noun
A device used to measure and calculate the fare for a taxi ride, typically consisting of a mechanical or electronic odometer and a fare calculator.
“The taxi driver explained how the taximeter worked to the confused passenger.”
2. noun
A person who measures or calculates something, especially a tax or fare.
“The taximeter was responsible for determining the fares for all the taxis in the city.”