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tachometer

[ ta-kom-i-ter, tuh- ]

noun

  1. any of various instruments for measuring or indicating velocity or speed, as of a machine, a river, or the blood.
  2. an instrument measuring revolutions per minute, as of an engine.


tachometer

/ ˌtækəˈmɛtrɪk; tæˈkɒmɪtə /

noun

  1. any device for measuring speed, esp the rate of revolution of a shaft. Tachometers (rev counters) are often fitted to cars to indicate the number of revolutions per minute of the engine
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Derived Forms

  • taˈchometry, noun
  • ˌtachoˈmetrically, adverb
  • tachometric, adjective
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Other Words From

  • tach·o·met·ri·cal·ly [tak-, uh, -, me, -trik-lee], adverb
  • ta·chome·try noun
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Word History and Origins

Origin of tachometer1

First recorded in 1800–10; tacho- + -meter
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Example Sentences

Damaged and beyond use was the tachometer, which was to have registered the vessel’s speed of descent.

Enhanced: tachometer even further to the left, speedometer even further to the right, and a wide customizable center.

This genre-defying book of compressed prose, poetry and image is the product of a mind — and heart — pushing the artistic tachometer to the red line.

Set to Sport mode, the transmission takes an aggressive set, holding on to gears high up the tachometer then downshifting early to provide engine braking as you slow down.

The red line — the 7,000-rpm mark on a race car’s tachometer — is the central motif in the new hit movie “Ford v Ferrari.”

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