jackhammer

play
noun jack·ham·mer \ˈjak-ˌha-mər\

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


JACKHAMMER Defined for English Language Learners

jackhammer

play
noun jack·ham·mer \ˈjak-ˌha-mər\

Definition of jackhammer for English Language Learners

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


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