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Definition of Standard atmosphere
1. Noun. A unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade.
Exact synonyms: Atm, Atmosphere, Standard Pressure
Generic synonyms: Pressure Unit
Specialized synonyms: S.t.p., Stp
Generic synonyms: Pressure Unit
Specialized synonyms: S.t.p., Stp
Medical Definition of Standard atmosphere
1. The pressure of the atmosphere at mean sea level, equivalent to 1,013,250 dynes/cm2 or 101,325 Pa (N/m2 in the SI system), a standardised expression of the relation of barometric pressure, temperature, and other atmospheric variables as a function of altitude above sea level. (05 Mar 2000)