radar-gun

radar gun

noun
a small, handheld Doppler radar device used to measure the speed of vehicles or other moving objects.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To radar-gun
American Heritage
Science Dictionary
radar gun  
A usually hand-held device that measures the velocity of a moving object by sending out a continuous radio wave and measuring the frequency of reflected waves. See more at Doppler effect.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature