HYDRODYNAMIC

{ Hy′dro‐dy‐nam″ic (?), Hy′dro‐dy‐nam″ic‐al (?), } a. [[Hydro-, 1 + dynamic, -ical: cf. F. hydrodynamique.]] Pertaining to, or derived from, the dynamical action of water of a liquid; of or pertaining to water power. Hydrodynamic friction, friction produced by the viscosity of a liquid in motion.