Dictionary
jackhammer
noun jack·ham·mer \ˈjak-ˌha-mər\
: a heavy tool used to break hard substances (such as concrete) into pieces by a repeated pounding action
Full Definition of JACKHAMMER
1
: a pneumatically operated percussive rock-drilling tool usually held in the hands
2
: a device in which a tool (as a chisel for breaking up pavements) is driven percussively by compressed air
— jackhammer verb
See jackhammer defined for English-language learners
See jackhammer defined for kids
ADVERTISEMENT
First Known Use of JACKHAMMER
1916
Rhymes with JACKHAMMER
Learn More About JACKHAMMER
Browse
Next Word in the Dictionary: Jack Horner piePrevious Word in the Dictionary: jackfruitAll Words Near: jackhammer
ADVERTISEMENT
Seen & Heard
What made you want to look up jackhammer? Please tell us where you read or heard it (including the quote, if possible).