What does tachymeter mean?
A device for measuring the speed of a vehicle, typically by timing the distance traveled over a known course. A tachymeter is also a device used in surveying to measure the distance between two points.
Example
"The driver used a tachymeter to measure the speed of her car on the highway."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.