beater

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beater

[′bēd·ər]
(agriculture)
A device for chopping or pulverizing unwanted parts of crops such as cornstalks or potato vines.
The part of a thresher that strikes the grains.
(engineering)
A tool for packing in material to fill a blasthole containing a charge of powder.
A laborer who shovels or dumps asbestos fibers and sprays them with water in order to prepare them for the beating.
(mechanical engineering)
A machine that cuts or beats paper stock.
(textiles)
The section of a loom that drives the weft from the shed into the cloth.