jackhammer

jackhammer
/jak"ham'euhr/, n.
a portable drill operated by compressed air and used to drill rock, break up pavement, etc.
[1925-30, Amer.; JACK1 + HAMMER]

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Universalium. 2010.

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  • jackhammer — n. a hammer having a strong steel cutting blade, driven by compressed air in multiple rapid strokes, and used for cutting through pavement, concrete, or other hard substances. Syn: air hammer, pneumatic hammer. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • jackhammer — (n.) also jack hammer, 1903, from JACK (Cf. jack) (n.) + HAMMER (Cf. hammer) (n.). As a verb by 1965 …   Etymology dictionary

  • jackhammer — chiefly N. Amer. ► NOUN ▪ a portable pneumatic hammer or drill. ► VERB ▪ beat or hammer heavily or loudly and repeatedly …   English terms dictionary

  • jackhammer — ☆ jackhammer [jak′ham΄ər ] n. [ JACK + HAMMER] a portable type of pneumatic hammer, used for breaking up concrete, rock, etc …   English World dictionary

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  • Jackhammer — A pneumatic drill or jackhammer is a portable percussive drill powered by compressed air. It is used to drill rock, break up pavement, among other applications. It works similar to a hammer and chisel, by jabbing with its bit, not rotating it. (A …   Wikipedia

  • Jackhammer — Pancor Jackhammer Technik Pancor Jackhammer Technik 2 Die …   Deutsch Wikipedia

  • jackhammer — UK [ˈdʒækˌhæmə(r)] / US [ˈdʒækˌhæmər] noun [countable] Word forms jackhammer : singular jackhammer plural jackhammers American a pneumatic drill …   English dictionary

  • jackhammer — /ˈdʒækhæmə / (say jakhamuh) noun 1. a handheld machine used for drilling rocks, road surfaces, etc., driven by compressed air. –verb (t) 2. to drill (a hole, etc.) using a jackhammer. –verb (i) 3. to use a jackhammer …  

  • jackhammer — noun Date: 1916 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 …   New Collegiate Dictionary

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