Speedometer Definition
 spĭ-dŏmĭ-tər, spē- 
    noun
  
 An instrument for indicating speed.
 American Heritage 
A device, often combined with an odometer, attached to a motor vehicle, etc. to indicate speed, as in miles per hour: it is usually connected to the transmission by a flexible drive shaft.
 Webster's New World 
An odometer.
 American Heritage 
Synonyms: 
  
- speed indicator
Other Word Forms of Speedometer
Noun
Singular:
 speedometerPlural:
 speedometersOrigin of Speedometer
-  speed + -o- + -meter From Wiktionary 
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