pressure-gradient

pressure gradient

noun Meteorology.
the change in atmospheric pressure per unit of horizontal distance in the direction in which pressure changes most rapidly.
Also called barometric gradient.


Origin:
1915–20

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
pressure gradient
 
n
1.  adverse pressure gradient See favourable pressure gradient the change of pressure per unit distance
2.  meteorol the decrease in atmospheric pressure per unit of horizontal distance, shown on a synoptic chart by the spacing of the isobars

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