hydrodynamics noun. [,hʌɪdrǝ(ʊ)dʌɪ'namɪks] L18.
[mod. Latin hydrodynamica, formed as HYDRO- + Greek dunamikos DYNAMIC: see -ICS.]
The branch of physical science that deals with the motion of fluids, esp. liquids, and (in mod. use) with the forces acting on them and on bodies immersed in them.

[TahlilGaran] English Dictionary ▲