noun Date: 1916 a pneumatically operated percussive rock-drilling tool usually held in the hands, a device in which a tool (as a chisel for breaking up pavements) is driven percussively by compressed air, ~ verb
JACKHAMMER
Meaning of JACKHAMMER in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012