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
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. 2012