JACKHAMMER


Meaning of JACKHAMMER in English

jack ‧ ham ‧ mer /ˈdʒækˌhæmə $ -ər/ BrE AmE noun [countable]

American English a large powerful tool used to break hard materials such as the surface of a road SYN pneumatic drill British English

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.