brake disk
- noun
- /breɪk dɪsk/
- Specialized
:
disco de freno
Examples
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The bonnet incorporates two generous air outlets at the center to optimize cooling of the powerful V8, and two more air outlets to cool down the brake discs have also been added to the two front wings.
Blog text (14) -
The mechanic replaced the worn-out brake disk to ensure the car would stop safely.
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To improve performance, the race car was fitted with lightweight carbon-ceramic brake disks.
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When the brake disks overheat, they can warp, reducing the effectiveness of the brakes.
Surface Forms
Morphology
The meaning is directly and transparently derived from combining 'brake' (a device applying pressure to stop motion) with 'disk' (a thin, round plate): a brake disk is simply the round plate used in the braking system. This noun-noun composition is cross-linguistically common (e.g., Spanish 'disco de freno') and follows regular English compounding patterns, so a B1 learner who knows both constituents would readily infer the meaning.
Etymology
The compound brake disk comes from a simple picture: a flat, round disk attached to a wheel that the brake presses to 'slow down' or 'stop' the wheel. So the name helps you remember that it is the round metal part that makes the wheel slow and stop.
