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brake drum

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noun
  1. a narrow metal cylinder, fixed to a rotating shaft or wheel, against which brake shoes or brake bands act.

Origin of brake drum

First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for brake drum

brake drum

noun
  1. the cast-iron drum attached to the hub of a wheel of a motor vehicle fitted with drum brakesSee also brake shoe
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