Definition

1. Noun:
   • A type of hydraulic brake where friction is applied to both sides of a spinning disc (or rotor) by brake pads to slow or stop a vehicle.

Usage

• Noun:
  • Most modern cars are equipped with disc brakes for better stopping power.
  • The mechanic recommended replacing the worn pads on the front disc brake.

Advanced Usage

• "ventilated disc brake": A disc brake with a rotor that has internal vanes to allow air to pass through, improving heat dissipation and performance.
  • High-performance cars often use ventilated disc brakes to prevent overheating.

Variants and Related Words

• Disc (or Disk) (n): The flat, circular metal component (rotor) that rotates with the wheel and is clamped by the brake pads.
  • The disc was warped from excessive heat.
• Brake caliper (n): The assembly that houses the brake pads and pistons, which clamp onto the disc.
  • The brake caliper squeezes the pads against the disc.
• Drum brake (n): An alternative braking system where friction is applied by shoes to the inner surface of a rotating drum.
  • Older vehicles often had drum brakes on the rear wheels.

Synonyms

• Rotor brake: Another term emphasizing the rotating disc component.
• Hydraulic disc brake: A more specific term highlighting the hydraulic actuation system.

Related Phrases

• "to have disc brakes all around": A phrase describing a vehicle equipped with disc brakes on both the front and rear axles.
  • This model has disc brakes all around for superior braking performance.

Noun

1. hydraulic brake in which friction is applied to both sides of a spinning disk by the brake pads