from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A handheld machine for drilling rock and breaking up pavement, operated by compressed air.

from the GNU version of the Collaborative International Dictionary of English.

  • noun 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A portable percussive power tool that combines a hammer and chisel used to drill or break hard matter, for instance rock or concrete.
  • verb To use a jackhammer.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a hammer driven by compressed air


Sorry, no etymologies found.



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