atmospheric pressure

English - Turkish

Definition of atmospheric pressure in English Turkish dictionary: atmosferik basınç; tenek basıncı; açık hava basıncı; atmosfer basıncı; hava basıncı
air pressure: tenek basıncı
air pressure: hava basıncı
pressure above atmospheric: manometrik basınç
steam pressure above atmospheric: atmosfer üstündeki buhar basıncı

English - English

Definition of atmospheric pressure in English English dictionary: The pressure caused by the weight of the atmosphere above an area; the pressure exerted by the atmosphere; air pressure, pressure of the layer of air surrounding the earth; Pressure caused by the weight of the atmosphere. At sea level it has a mean value of one atmosphere but reduces with increasing altitude. 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; air pressure