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.

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

Word History and Origins

Origin of drum brake¹

First recorded in 1945–50