disc brake

noun

variants or less commonly disk brake
: a brake that operates by the action of a frictional material pressed against the sides of a rotating disc by a caliper compare drum brake

Illustration of disc brake

Illustration of disc brake
  • 1 caliper
  • 2 disc

Examples of disc brake in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The braking system is made up of three disc brakes (one per wheel), a composite system, and Bosch ABS, all of which can be controlled via the two hand levers and a foot pedal. New Atlas, 11 Apr. 2026 Nevertheless, an electric overdrive switch in the 1950s was advanced, and the Austin Healey 100S — a high-performance variant — was one of the first production vehicles to feature four-wheel disc brakes in 1955. Jesus R. Garcia, Houston Chronicle, 5 Apr. 2026 Take the brake-by-wire system, which blends the disc brakes’ stopping power with the 849’s regenerative braking to reduce jerk, prevent lockup, and maximize performance. Erik Shilling, Robb Report, 21 Mar. 2026 Niu This is the best all-terrain scooter, with reliable suspension, dual disc brakes, and thick 10.5-inch tubeless tires. Boutayna Chokrane, Wired News, 27 Feb. 2026 See All Example Sentences for disc brake

Word History

First Known Use

1865, in the meaning defined above

Time Traveler
The first known use of disc brake was in 1865

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Cite this Entry

“Disc brake.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disc%20brake. Accessed 20 Apr. 2026.

Kids Definition

disc brake

noun
: a brake that operates by the friction of two plates pressing against the sides of a rotating disc
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