| Noun | 1. | car wheel - a wheel that has a tire and rim and hubcap; used to propel the carfifth wheel, spare - an extra car wheel and tire for a four-wheel vehicle hub - the central part of a car wheel (or fan or propeller etc) through which the shaft or axle passes hubcap - cap that fits over the hub of a wheel automotive vehicle, motor vehicle - a self-propelled wheeled vehicle that does not run on rails pneumatic tire, pneumatic tyre - a tire made of reinforced rubber and filled with compressed air; used on motor vehicles and bicycles etc wheel - a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines) |