Try Our Apps


The Best Internet Slang


[spee-dom-i-ter, spi-] /spiˈdɒm ɪ tər, spɪ-/
an instrument on an automobile or other vehicle for indicating the rate of travel in miles or kilometers per hour.
Origin of speedometer
First recorded in 1900-05; speed + -o- + -meter Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
British Dictionary definitions for speedometer


a device fitted to a vehicle to measure and display the speed of travel See also mileometer
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
Cite This Source
Word Origin and History for speedometer

1904, from speed + -meter. A Germanic-Greek hybrid and thus execrated by purists.

[T]he ancient Greeks & Romans knew what speed was, & yet no-one supposes they called it speed, whence it follows that speedo- & speedometer are barbarisms. [Fowler]

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
speedometer in Science
An instrument for indicating the speed of a vehicle, typically by measuring the rate of rotation of a wheel or fan whose rate of rotation depends on the speed of the vehicle. Compare odometer.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for speedometer

Few English speakers likely know this word

Word Value for speedometer

Scrabble Words With Friends

Nearby words for speedometer