- Types:
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atm, atmosphere, standard atmosphere, standard pressure
a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade
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Pa, pascal
a unit of pressure equal to one newton per square meter
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millimeter of mercury, mm Hg, torr
a unit of pressure equal to 0.001316 atmosphere; named after Torricelli
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pounds per square inch, psi
a unit of pressure
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millibar
a unit of atmospheric pressure equal to one thousandth of a bar
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bar
(meteorology) a unit of pressure equal to a million dynes per square centimeter
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bar absolute, barye, microbar
the absolute unit of pressure equal to one dyne per square centimeter
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STP, s.t.p.
standard temperature and pressure