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

  • noun A transient air pressure, such as the shock wave from an explosion, that is greater than the surrounding atmospheric pressure.
  • noun Geology Pore or subsurface pressure that exceeds normal hydrostatic pressure at a given depth.
  • transitive verb To cause or subject to overpressure.

from The Century Dictionary.

  • noun Excessive pressure.

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

  • noun Excessive pressure or urging.

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

  • noun excess or markedly elevated pressure, especially a transient high pressure due to a shock wave
  • verb To subject to a high pressure

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

  • noun a transient air pressure greater than the surrounding atmospheric pressure


Sorry, no etymologies found.



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