emergency brake


Definition of emergency brake 

: a brake (as on an automobile) that can be used for stopping in the event of failure of the main brakes and to keep the vehicle from rolling when parked

Examples of emergency brake in a Sentence

Recent Examples on the Web

This combination provides a sunroof and automatic emergency braking with pedestrian detection. Tom Voelk, New York Times, "26 Vehicles Played in the Mud. Here’s the Dirt.," 12 July 2018 Most automakers have voluntarily committed to installing low-speed automatic emergency braking systems by 2022, but the progress to date varies greatly, according to NHTSA. Detroit Free Press, "Death on foot," 28 June 2018 Uber had disabled the car’s emergency braking ability, instead relying on a backup safety driver to take control in such situations. Carolyn Said, SFChronicle.com, "Uber lays off 100 backup drivers in self-driving unit," 12 July 2018 Crew on the train, traveling from Tacoma to Everett, spotted the man and hit the emergency brake while sounding the train whistle, Melonas said. Jim Brunner, The Seattle Times, "Man walking on tracks killed by freight train in Shoreline," 24 June 2018 Investigators say the emergency brakes were automatically activated during the derailment instead of being manually applied by the driver. Erik Larson And Pamela Maclean, Houston Chronicle, "Exxon can't dodge state climate change probes, judge says," 29 Mar. 2018 Dominguez hit the emergency brakes, but a four-hundred-ton train can’t stop quickly: the train skidded to a halt over the man and the dog. William Finnegan, The New Yorker, "Can Andy Byford Save the Subways?," 2 July 2018 The ride-sharing company’s specially outfitted Volvo was deliberately tested on public roads without its emergency braking system turned on, the agency said. Michael Laris, Washington Post, "Uber safety driver’s phone was streaming ‘The Voice’ ahead of deadly driverless crash, police find," 22 June 2018 The safety suite includes automated emergency braking with pedestrian detection, blind-spot warning, lane-keeping assist, a backup camera, and automatic high-beam headlamps. Tony Markovich, Car and Driver, "Ford Refreshes the Fusion Again and Debuts Co-Pilot360 Safety Package," 20 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'emergency brake.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of emergency brake

1900, in the meaning defined above

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Last Updated

19 Sep 2018

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Time Traveler for emergency brake

The first known use of emergency brake was in 1900

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More Definitions for emergency brake

emergency brake


English Language Learners Definition of emergency brake

: a special brake (such as a parking brake in an automobile) that can be used for stopping when the main brakes fail

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to deposit or conceal in a hiding place

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