Simple Definition of tachometer

from our Learner's Dictionary

tachometer

noun

tæˈkɑːmətɚ How to pronounce tachometer (audio)
plural tachometers
technical : a device that measures how fast something (such as a wheel) is turning

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“Tachometer.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/tachometer. Accessed 24 Jun. 2026.

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Britannica.com: Encyclopedia article about tachometer

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