radar gun

American  

noun

1. a small, handheld Doppler radar device used to measure the speed of vehicles or other moving objects.

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radar gun Scientific  

1. 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.

2. See more at Doppler effect

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Example Sentences

He acknowledges he brought a radar gun to the rink to clock her speed.

From The Wall Street Journal • Feb. 20, 2026

Coming off his second career Tommy John surgery this year, Ohtani immediately lit up the radar gun with 100-mph fastballs and amassed gaudy strikeout totals with a devastating sweeper.

From Los Angeles Times • Aug. 27, 2025

Kershaw might be barely hitting 90 mph on the radar gun, but he’s pitching effectively, and more important, taking his turn in the rotation — which is a noteworthy achievement on this staff.

From Los Angeles Times • Jun. 28, 2025

At the time, Muñoz was an 18-year-old, flame-throwing pitcher for the Tri-City Dust Devils, and Taboada Catalan can still picture the radar gun readings that flashed on the stadium scoreboard throughout that summer.

From Seattle Times • May 24, 2024

Just as he did this the warning light on his radar gun sight blinked on, indicating that something solid was in front of him—he wasn't photographing a sundog, hallucination, or refracted light.

From The Report on Unidentified Flying Objects by Ruppelt, Edward J.