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power brake
noun
- an automotive brake set by pressure from some power source, as a compressed-air reservoir, in proportion to a smaller amount of pressure on the brake pedal.
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Word History and Origins
Origin of power brake1
First recorded in 1895–1900
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Example Sentences
From outside in fabrication came the muffled clang of drill press and power brake, the sounds of the night shift.
From Project Gutenberg
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