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Atlantic City
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atmospheric pressure
at·mos·pher·ic pres·sure


noun 
Definition:
 
air pressure: the downward pressure exerted by the weight of the overlying atmosphere. It has a mean value of one atmosphere at sea level but decreases as elevation increases.
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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