D defs.my
Entry 1 sense Webster, 1913

Hydrodynamic

· Hy·dro·dy·nam·ic · IPA
01 a. Pertaining to, or derived from, the dynamical action of water of a liquid; of or pertaining to water power.
  1. 1.
    Pertaining to, or derived from, the dynamical action of water of a liquid; of or pertaining to water power.
Phrases & compounds
Hydrodynamic friction — friction produced by the viscosity of a liquid in motion.