Meaning of “jackhammer” in the English Dictionary

british dictionary

"jackhammer" in American English

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jackhammernoun [ C ]

us /ˈdʒækˌhæm·ər/

a powerful tool, held in the hands and operated by air pressure, that is used for breaking hard surfaces such as rock and roads

(Definition of “jackhammer” from the Cambridge Academic Content Dictionary © Cambridge University Press)

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