pressure gradient
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pressure gradient — n. the rate of decrease in barometric pressure in a given region at a particular time … English World dictionary
Pressure gradient — In atmospheric sciences (meteorology, climatology and related fields), the pressure gradient (typically of air, more generally of any fluid) is a physical quantity that describes in which direction and at what rate the pressure changes the most… … Wikipedia
pressure gradient — noun : the space rate of variation of pressure in a given direction; specifically : such rate of variation in a direction normal to an isobar * * * Meteorol. the change in atmospheric pressure per unit of horizontal distance in the direction in… … Useful english dictionary
pressure gradient — The change in pressure with horizontal distance at a fixed time. The higher the pressure gradient, the faster is the fluid flow. Pressure gradient … Aviation dictionary
Pressure-gradient force — The pressure gradient force is not actually a force but the acceleration of air due to pressure difference (a force per unit mass). It is usually responsible for accelerating a parcel of air from a high atmospheric pressure region to a low… … Wikipedia
pressure gradient — Meteorol. the change in atmospheric pressure per unit of horizontal distance in the direction in which pressure changes most rapidly. Also called barometric gradient. [1915 20] * * * … Universalium
pressure gradient — /ˈprɛʃə greɪdiənt/ (say preshuh graydeeuhnt) noun the decrease in atmospheric pressure per unit of horizontal distance in the direction in which pressure decreases most rapidly …
pressure gradient — in the atmosphere, the rate at which pressure changes across space. Higher rates of change will create faster winds … Geography glossary
Adverse pressure gradient — An adverse pressure gradient occurs when the static pressure increases in the direction of the flow. This is important for boundary layers, since increasing the fluid pressure is akin to increasing the potential energy of the fluid, leading to a… … Wikipedia
hepatic vein pressure gradient — hepatic venous pressure gradient the difference between the wedged hepatic venous pressure and the free hepatic venous pressure, used to assess portal hypertension … Medical dictionary
