overpressure - definition of overpressure - synonyms, pronunciation, spelling from Free Dictionary

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a transient air pressure greater than the surrounding atmospheric pressure“the overpressure of the blast kills by lethal concussion”Type of atmospheric pressure, air pressure

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O′ver·pres′sure noun

Excessive pressure or urging. London Athenaeum.

Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54