Dictionary
Thesaurus
Medical
Scrabble®
Spanish Central
Browse DictionaryBrowse Thesaurus
Get our free apps!iPhone•iPad•Android
Games
Word of the Day
Video
Blog: Words at Play
My Faves
Dictionary

tachometer

noun ta·chom·e·ter \ta-ˈkä-mə-tər, tə-\

: a device that measures how fast something (such as a wheel) is turning

Full Definition of TACHOMETER

:  a device for indicating speed of rotation
See tachometer defined for English-language learners
See tachometer defined for kids
ADVERTISEMENT

Origin of TACHOMETER

Greek tachos speed + English -meter
First Known Use: 1810

Rhymes with TACHOMETER

barometer, ceilometer, chronometer, cyclometer, ergometer, Fathometer, gasometer, geometer, hydrometer, hygrometer, kilometer, manometer, micrometer, odometer, pedometer, photometer, pyrometer, rheometer, seismometer, spectrometer, speedometer, thermometer, viscometer

Learn More About TACHOMETER

Browse

Next Word in the Dictionary: tachometricallyPrevious Word in the Dictionary: tachographAll Words Near: tachometer
ADVERTISEMENT
10 Charming Words for Nasty People
Put-downs with flair
Learn More
When "Literally" isn't, well, literal
How to use a word that (literally) drives some people nuts.
Watch Now
Know what this is?
Test your vocab with our fun, fast game
Go Play
Fear of cats?
Ailurophobia, and 9 other unusual fears
Learn More
Join Us
Merriam-Webster
on Facebook
Merriam-Webster
on Twitter
Bookstore: Digital and Print
Merriam-Webster references for Mobile, Kindle, print, and more.
See All
Other Merriam-Webster Dictionaries