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hydrostatic vs. osmotic pressure

[hahy-druh-stat-ik] / ˌhaɪ drəˈstæt ɪk /
Also hydrostatical

adjective

  1. of or relating to hydrostatics.

noun

Physical Chemistry.
  1. the force that a dissolved substance exerts on a semipermeable membrane, through which it cannot penetrate, when separated by it from pure solvent.