atmospheric pressure

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atmospheric pressure

Pressure caused by the weight of the atmosphere. At sea level it has a mean value of one atmosphere but reduces with increasing altitude. Also called barometric pressure.

atmospheric pressure

(General Physics) the pressure exerted by the atmosphere at the earth's surface. It has an average value of 1 atmosphere

at′mospher′ic pres′sure

1. the pressure exerted by the earth's atmosphere at any given point.
2. a value of standard or normal atmospheric pressure, equivalent to the pressure exerted by a column of mercury 29.92 in. (760 mm) high, or 1013 millibars (101.3 kilopascals). Also called barometric pressure.

at·mos·pher·ic pressure

Pressure caused by the weight of the air. At sea level it has an average value of one atmosphere and gradually decreases as the altitude increases.
Did You Know? The atmosphere that blankets the Earth gently presses down on us, and the subtle variations in this atmospheric pressure greatly affect the weather. For example, forecasters often talk of low pressure bringing rain. In areas of low air pressure, the air is less dense and relatively warm, which causes it to rise. The expanding and rising air naturally cools and the water vapor in the air condenses, forming clouds and the drops that fall as rain. In high pressure regions, on the other hand, the air is dense and relatively cool, which causes it to sink. The water vapor in the sinking air does not condense, leaving the skies sunny and clear. So if you're trying to hit a home run, would you prefer a beautiful, sunny day or one in which it looks like rain? On the overcast day, the ball has less air to push aside on its way out of the ballpark, making it easier to hit a homer.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.atmospheric pressure - the pressure exerted by the atmosphereatmospheric pressure - the pressure exerted by the atmosphere
gas pressure - the pressure exerted by a gas
barometric pressure - atmospheric pressure as indicated by a barometer
compartment pressure - the air pressure maintained in an air-tight compartment (as in an aircraft)
overpressure - a transient air pressure greater than the surrounding atmospheric pressure; "the overpressure of the blast kills by lethal concussion"
sea-level pressure - the atmospheric pressure reduced by a formula to the pressure at sea level
References in periodicals archive ?
In addition it has an on-board tyre inflator for getting the car's tyres back to normal pressure for driving home, as well as 'bead-lock' wheels that enable these to be used at extremely low pressures without the risk of them coming off.
As LSV is a normal pressure technology, data center operators only need to control air availability, not air pressure, making it far easier to achieve optimum conditions in the server room.
Fewer roll changes are needed with lubricated backup rolls, as the normal pressure and friction traction between the backup and work rolls are reduced, which translates to extended roll service lives and lower roll costs
The localities in Rawalpindi getting normal pressure are including Committee Chowk, Dhoke Khaba,Umer Road, Dhoke Ealhi Bukush, Nadeem Colony, Arya Mohallah, Pirwadhai, Adiala Road, Bakra Mandi, Dhoke Syedan, Sadiqabad, Muslim Town, Dhamial, Qasim Market, Satellite Town, Chur, Allahabad, Chah Sultan, Asghar Mall,Pindora and Dheri Hassanabad.
That's an amazing accomplishment for any firearm where your normal pressure range is around 50,000 psi.
Saints gaffer Craig insists he's not feeling Saints gaffer Craig insists he's not feeling the strain and added: "Football pressure the strain and added: "Football pressure is a natural thing to experience and it is a natural thing to experience and it is different from normal pressure.
I guess this is normal pressure for a player and we try to reduce the pressure on him by playing together.
They find that some aspects of phase transformation can be studied better under pressure at a range of temperatures than at the temperature required for the transformation at normal pressure.
In this situation, I don't know what has happened, but it is clear from the pictures that there was normal pressure from Ivanovic and you see the player pull one arm and try to bite.
Then, in 2011, Wagner was diagnosed with normal pressure hydrocephalus, or NPH, a buildup of spinal fluid in the brain that affects about 5 percent of dementia patients.
Arcieri with normal pressure hydrocephalus, or NPH.
In the therapy room, which may also be a one person chamber, the air pressure is raised to about three times that of normal ambient pressure; this increase in pressure lets your lungs gather three times the amount of oxygen that they gather when breathing at normal pressure.