tachy meter

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Definitions from WordNet

Noun tachy meter has 1 sense

tachymeter, tacheometer - a theodolite designed for rapid measurements
--₁ is a kind of theodolite, transit

Definitions from the Web

Tachymeter

A tachymeter is a device used to measure speed or rate of rotation, typically in a mechanical or electronic system.

1. Noun: Instrument

In the field of engineering and physics, a tachymeter is an instrument used to calculate speed or velocity.

Example sentence: The tachymeter on the dashboard of the car provided accurate readings of the vehicle's speed.

2. Noun: Watch Bezel

In horology, a tachymeter is a feature often found on the bezel of certain watches, allowing the measurement of speed over a fixed distance.

Example sentence: The tachymeter on his chronograph watch helped him determine the average speed he was running at.