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drum brake

noun Automotive.
  1. a brake system in which a pair of brake shoes can be pressed against the inner surface of a shallow metal drum that is rigidly attached to a wheel.
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Origin of drum brake

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for drum brake

drum brake

noun
  1. a type of brake used on the wheels of vehicles, consisting of two pivoted shoes that rub against the inside walls of the brake drum when the brake is applied
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012