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Definition of tachometer

tachometer

/tæˈkɑːmɪtər/
ta · chom · e · ter
Plural:tachometers
•
Adjective:tachometric
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tachometer Lexical Profile

tachometer Game Scores & Validity

• noun

1

An instrument that measures the working speed of an engine, typically displaying the revolutions per minute (RPM) of a revolving shaft.

Example

"The driver kept a close eye on the tachometer to ensure the engine did not exceed its safe operational limits during the race."

Synonyms
View all synonyms for tachometer

• Rhymes for tachometer

• Nearby Words

tach
tache
tachograph
tachometer
tacit
tacitly
taciturnly

Word Origin & Etymology

Coined in the early 19th century from the Greek 'takhos' (speed) combined with the suffix '-meter' (denoting an instrument used to measure).

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Tachometer. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/tachometer
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