What term describes the pressure in a fluid at rest?

Hydrostatic pressure specifically refers to the pressure exerted by a fluid when it is at rest. This pressure is a result of the weight of the fluid above a certain point in the fluid column and is affected by the density of the fluid and the height of the fluid column. In a static fluid, the pressure increases with depth due to the weight of the fluid above, which is described by the hydrostatic pressure formula: P = ρgh, where P is pressure, ρ is fluid density, g is the acceleration due to gravity, and h is the height of the fluid column.

In contrast, dynamic pressure relates to fluids in motion and is associated with the energy of the moving fluid, not the pressure at rest. Gauge pressure measures the pressure relative to the atmospheric pressure and does not account for the absolute pressure exerted by a fluid at rest. Absolute pressure takes into account the atmospheric pressure in addition to the hydrostatic pressure, which represents the total pressure but is not limited to conditions where the fluid is at rest. Therefore, hydrostatic pressure is the most accurate term to describe the pressure of a fluid when it is stationary.