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jackhammer

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jackhammer

Main Entry:: jack·ham·mer
Pronunciation:: \ˈjak-ˌha-mər\
Function:: noun
Date:: 1916

1 : a pneumatically operated percussive rock-drilling tool usually held in the hands 2 : a device in which a tool (as a chisel for breaking up pavements) is driven percussively by compressed air

— jackhammer verb

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