pressure gradient

American  

noun

Meteorology.

1. the change in atmospheric pressure per unit of horizontal distance in the direction in which pressure changes most rapidly.

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pressure gradient British  

noun

1. the change of pressure per unit distance See adverse pressure gradient favourable pressure gradient

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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Etymology

Origin of pressure gradient

First recorded in 1915–20

Example Sentences

Among the most promising approaches involves operating a reactor in high-confinement mode, a regime characterized by the formation of a steep pressure gradient at the plasma's edge that offers enhanced plasma confinement.

From Science Daily

In addition to this difference in pressure, or pressure gradient, winds accelerate as they are squeezed through canyons and passes, creating a Venturi effect — much like a nozzle on a garden hose.

From Los Angeles Times

Near the edge of the plasma, a sharp pressure gradient causes the particles to spiral in such a way that they interfere with each other and push themselves—by their own bootstraps—around the ring.

From Science Magazine

The pressure gradient, or difference, between this surface high pressure to the east of California and lower pressure at the coast is what drives the winds, which are expected to be strongest Wednesday into Thursday morning.

From Los Angeles Times

The pressure gradient, or difference, between the high pressure air in the Great Basin and the lower pressure air at the coast creates the Santa Ana winds.

From Los Angeles Times