Definition of "speedometer" [speedometer]

• An instrument for indicating speed. (noun)
• An instrument for indicating distance traveled as well as rate of speed. (noun)
• An odometer. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The speedometer is over 100, dad needs to slow down."
• "You make the correction because you know the speedometer is off."
• "Or maybe the speedometer is busted and you are only traveling 25 mph and a cushy guardrail is close by."