Hydrostatic pressure is the pressure exerted by a fluid due to its weight. The buoyancy force on a body fully immersed in a static fluid is attributable to the pressure, summed (integrated) over the body's surface. The pressure is isotropic in that case - it acts in all directions equally. That is not true in the case of fluid flow.
Hydrostaticpressure is the pressure due to the weight of a fluid.
The pressure of a moving fluid can be measured using a Pitot probe, or one of its variations such as a Kiel probe or Cobra probe, connected to a manometer.
Blood pressure is still measured in millimetres of mercury in most of the world, and lung pressures in centimeters of water are still common.
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