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[oh-ver-presh-er] /ˌoʊ vərˈprɛʃ ər/
pressure in excess of normal atmospheric pressure, as that caused by an explosion's shock wave or created in an accelerating airplane.
verb (used with object), overpressured, overpressuring.
to cause or expose to overpressure.
to make undue demands on by a regimen, work load, etc.:
students overpressured with heavy academic schedules.
Origin of overpressure
First recorded in 1635-45; over- + pressure
Related forms
overpressurization, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for overpressure
Historical Examples
  • The laws of overpressure are at this moment acting slowly and silently in our midst.

    Z. Marcas Honore de Balzac
  • I am getting on first rate with my Greek, and will do capital if my health does not break down with overpressure.

    My Lady Nicotine J. M. Barrie
  • Forcing and overpressure have the same origin, and the same result upon alert and varied intellectual interest.

  • Under the overpressure on medical skill and time is bound to diminish tact and sympathy.

    A Poor Man's House

    Stephen Sydney Reynolds
British Dictionary definitions for overpressure


the blast effect of a nuclear weapon expressed as an amount of pressure greater than normal barometric pressure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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