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| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a scrap or morsel of food left at a meal. |
| disc brake | |
| —n | |
| a type of brake in which two calliper-operated pads rub against a flat disc attached to the wheel hub when the brake is applied | |
disc brake also disk brake (dĭsk) Pronunciation Key
(click for larger image in new window) A brake in which friction is caused by a set of pads, usually made of steel, that press against a rotating disk to slow or stop its rotation. |