ta·chom·e·ter

[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.

Origin:
1800–10; tacho- + -meter

tach·o·met·ri·cal·ly [tak-uh-me-trik-lee] , adverb
ta·chom·e·try, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To tachometer
Collins
World English Dictionary
tachometer (tæˈkɒmɪtə) [Click for IPA pronunciation guide]
 
n
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
 
tachometric
 
adj
 
tacho'metrical
 
adj
 
tacho'metrically
 
adv
 
ta'chometry
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Tachometer is always a great word to know.
So is lollapalooza. Does it mean:
the offspring of a zebra and a donkey.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Etymonline
Word Origin & History

tachometer
1810, from Gk. tachos "speed" + Eng. -meter, on model of barometer, etc.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

tachometer ta·chom·e·ter (tā-kŏm'ĭ-tər, tə-)
n.
An instrument used to measure the rotations per minute of a rotating shaft.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Encyclopedia Britannica
Encyclopedia

tachometer

device for indicating the angular (rotary) speed of a rotating shaft. The term is usually restricted to mechanical or electrical instruments that indicate instantaneous values of speed in revolutions per minute, rather than devices that count the number of revolutions in a measured time interval and indicate only average values for the interval.

Learn more about tachometer with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Example sentences
Because there is no tachometer, you shift when the power falls off.
The rotating speed of each pump was measured with a strobe type tachometer.
Detection of this condition is accomplished by a friction driven tachometer
  driven from the hoist ropes.
Dashboard houses a kilowatt power meter instead of a tachometer.
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT