What does tachometer mean?
A device used to measure the speed of an object, typically in revolutions per minute, and often used in vehicles and machinery. A tachometer may also refer to a device used to measure the rotational speed of a shaft or other rotating part.
Example
"The car's tachometer needle was spinning wildly as the driver pushed the engine to its limits."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.