D defs.my
Entry 1 sense Webster, 1913

Hydrodynamics

· Hy·dro·dy·nam·ics · IPA
01 n. That branch of the science of mechanics which relates to fluids, or, as usually limited, which treats of the laws of motion and action of n…
  1. 1.
    That branch of the science of mechanics which relates to fluids, or, as usually limited, which treats of the laws of motion and action of nonelastic fluids, whether as investigated mathematically, or by observation and experiment; the principles of dynamics, as applied to water and other fluids.