Air pressure

Air pressure

A measure of the weight of an entire air column of unit area cross section above the barometer, as a consequence of gravitational attraction, or equivalently, the force exerted by molecules of air acting on a unit area of any surface.

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Industry/Domain: Earth science
Category: Geology
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Related terms

air pressure

Geography; Physical geography

The force of the atmosphere on the surface.

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Household appliances; Vacuum cleaners

The pressure of atmospheric or compressed air. In terms of vacuums, a unit's suction motor reduces the air pressure in order to create airflow.

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Automotive; Automotive paint

The amount that air is compressed, which is typically measured in "pounds per square inch" (PSI) for use in US auto body industry. However, this pressure can also be measured in ...

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Earth science; Geology

A measure of the weight of an entire air column of unit area cross section above the barometer, as a consequence of gravitational attraction, or equivalently, the force exerted by ...

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Sports; Scuba diving

The force per unit area exerted by the weight of air; at sea level the air pressure is 14. 7 psi. (air pressure decreases with altitude. )

air pressure

Science; General science

The force per unit area that the air exerts on any surface in contact with it, arising from the collisions of the air molecules with the surface. It is equal and opposite to the ...