The barometric formula, sometimes called the exponential atmosphere or isothermal atmosphere, is a formula used to model how the pressure (or density) of the air changes with ...
http://en.wikipedia.org/wiki/Barometric_formula

The barometric altimeter setting which will cause the altimeter to read airfield elevation when on the airfield. In ISA temperature conditions the altimeter will read altitude ...
http://en.wikipedia.org/wiki/Barometric_pressure

Note that the model calculation assumes a uniform temperature, and is therefore not a realistic model of the atmosphere. The temperature tends to decrease with height, so the model ...
http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/barfor.html

ba·rom·e·ter   (b-r m-t r) n. 1. An instrument for measuring atmospheric pressure, used especially in weather forecasting. 2. Something that registers or responds to ...
http://www.thefreedictionary.com/barometric

Definition and standard value of barometric pressur. Barometer FAQs How to Choose the best barometer Which barometers are available?
http://barometric-pressure.net