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 of pressure gradient

First recorded in 1915–20

British Dictionary definitions for barometric gradient

pressure gradient

noun

the change of pressure per unit distance See adverse pressure gradient, favourable pressure gradient
meteorol the decrease in atmospheric pressure per unit of horizontal distance, shown on a synoptic chart by the spacing of the isobars