jackhammer

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jack·ham·mer

 (jăk′hăm′ər)
n.
A handheld machine for drilling rock and breaking up pavement, operated by compressed air.

jack′ham′mer v.

jackhammer

(ˈdʒækˌhæmə)
n
(Tools) a hand-held hammer drill, driven by compressed air, for drilling rocks, etc

jack•ham•mer

(ˈdʒækˌhæm ər)

n.
a portable drill operated by compressed air and used to drill rock, break up pavement, etc.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.jackhammer - a hammer driven by compressed airjackhammer - a hammer driven by compressed air  
power hammer, hammer - a power tool for drilling rocks
Translations

jackhammer

[ˈdʒækˌhæməʳ] N (esp US) → taladradora f, martillo m neumático
References in periodicals archive ?
WORCESTER -- Jackhammering that was being done as part of the DCU Center renovation project was stopped Thursday afternoon after pieces of concrete fell, landing at the entrance to a truck tunnel off Major Taylor Boulevard and shattering.
Butterfly's style is surefire jackhammering, pelting floor jams that seemed to show a pair of black shoes shooting across the stage unattached to a body.
As long as they're not jackhammering, I'm just glad it's done,'' said Jody Johnston, whose youngest daughter, Tessa, started third grade.
First, each of the columns will have to be reinforced from the cellar to at least the 15th floor before jackhammering out the bad concrete.
IN A GROWING number of manhole-repair projects, the time-consuming and intrusive process of jackhammering is being replaced by a new technique featuring diamond core drilling.