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Pronunciation varies by accent · noun
Initialism of pounds per square inch absolute (an imperial unit of absolute, not relative, pressure; meaning total resultant pressure, including atmospheric or other ambient pressure)..
Double base propellants often require ignition pressures of as much as 400 psia to avoid the problem of chuffing or hangfires.
Use psia when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Psia means Initialism of pounds per square inch absolute (an imperial unit of absolute, not relative, pressure; meaning total resultant pressure, including atmospheric or other ambient pressure)..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Double base propellants often require ignition pressures of as much as 400 psia to avoid the problem of chuffing or hangfires.
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