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jackhammer

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noun jack·ham·mer \ˈjak-ˌha-mər\

Simple Definition of jackhammer

  • : a heavy tool used to break hard substances (such as concrete) into pieces by a repeated pounding action

Source: Merriam-Webster's Learner's Dictionary

Full Definition of jackhammer

  1. 1 :  a pneumatically operated percussive rock-drilling tool usually held in the hands

  2. 2 :  a device in which a tool (as a chisel for breaking up pavements) is driven percussively by compressed air

jackhammer verb

1916

First Known Use of jackhammer

1916


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