{ 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.