See Also: atmospheric pressure(encyclopedia)
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Bodian, David(medicine)
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Atmospheric(medicine)

Bodian, David (medicine) and atmospheric pressure (sh)


Bodian, David (medicine)


Bodian, David
<person> U.S. Anatomist, *1910.

See: Bodian's copper-protargol stain.


atmospheric pressure (sh)




or barometric pressure

Force per unit area exerted by the air above the surface of the Earth.

Standard sea-level pressure, by definition, equals 1 atmosphere (atm), or 29.92 in. (760 mm) of mercury, 14.70 lbs per square in., or 101.35 kilopascals, but pressure varies with elevation and temperature. It is usually measured with a mercury barometer (hence the term barometric pressure), which indicates the height of a column of mercury that exactly balances the weight of the column of atmosphere above it. It may also be measured using an aneroid barometer, in which the action of atmospheric pressure in bending a metallic surface is made to move a pointer.