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overpressure

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
o·ver·pres·sure  (vr-prshr)
n.
A transient air pressure, such as the shock wave from an explosion, that is greater than the surrounding atmospheric pressure.
tr.v. o·ver·pres·sured, o·ver·pres·sur·ing, o·ver·pres·sures
To cause or subject to overpressure.

over·pressur·i·zation (--zshn) n.

overpressure [ˈəʊvəˌprɛʃə]
n
(Military) the blast effect of a nuclear weapon expressed as an amount of pressure greater than normal barometric pressure

The pressure resulting from the blast wave of an explosion. It is referred to as "positive" when it exceeds atmospheric pressure and "negative" during the passage of the wave when resulting pressures are less than atmospheric pressure.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.overpressure - a transient air pressure greater than the surrounding atmospheric pressure; "the overpressure of the blast kills by lethal concussion"
air pressure, atmospheric pressure, pressure - the pressure exerted by the atmosphere


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After the bottle is filled and capped it goes through a patented Continuous Motion Activator (CMA) machine that inverts the base, which takes up the vacuum in the bottle and creates a slight overpressure.
Bad seals prevent the Fox from building overpressure, which means it can't seal out water or chemical agents.
The company has also increased its capital and operating budget for 2009 to $34 million from $30 million, reflecting “the operational delays and associated costs related to overpressured zones encountered by Sarqala-1 and the additional costs for the intermediate casing strings planned for Kurdamir to mitigate the risk of similar overpressure and lost circulation issues as encountered at Sarqala-1,” says the company.
 
 
 
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