bumper

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bumper

1. a horizontal metal bar attached to the front or rear end of a car, lorry, etc., to protect against damage from impact
2. Cricket a ball bowled so that it bounces high on pitching; bouncer

bumper

[′bəm·pər]
(engineering)
A metal bar attached to one or both ends of a powered transportation vehicle, especially an automobile, to prevent damage to the body.
In a drilling operation, the supporting stay between the main foundation sill and the engine block.
In drilling, a fishing tool for loosening jammed cable tools.
(metallurgy)
A vibrating machine for ramming and consolidating sand into a mold.

bumper

1. A device (other than an oil buffer or spring buffer) designed to stop an elevator car or counterweight from descending beyond its normal limit of travel; the car strikes the bumper, which absorbs the impact.
2. On a doorframe, a rubber silencer to reduce noise caused by the slamming of a door.

rubber silencer, bumper

A resilient part, such as a rubber button, attached to the stop on a doorframe to reduce noise caused by slamming of the door.