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treated as singularThe branch of science concerned with forces acting on or exerted by fluids (especially liquids).

*‘Sailing is one of those sports which involves hydrodynamics, fluid dynamics, material science, human physiology, tactics, psychology.’**‘Jeffrey's work was on the applications of mathematics, in particular he worked on hydrodynamics, viscous liquids and elasticity.’**‘Current research focuses on the forces that act on a body moving through the water, the science of hydrodynamics.’**‘His work on machines includes much in the area of applied mechanics, but he was also interested in applied hydrodynamics and steam engines.’**‘His early work was on magnetism and electricity but he soon concentrated on hydraulics and hydrodynamics.’**‘He was interested in their applications to dynamics, hydrodynamics, elasticity, and electrostatics.’**‘His interests in science itself were mainly in the area of mathematical physics, and in particular thermodynamics, hydrodynamics, elasticity, mathematical chemistry, and mechanics.’**‘He was also interested in hydrodynamics and hydraulics and he moved on from making sundials to invent other machinery, in particular pumps.’**‘We could not understand chemistry and hydrodynamics.’**‘In particular he applied his methods to equations resulting from electromagnetics, then later to those arising from hydrodynamics.’**‘Thus, the lipid dynamics depend on the friction and not on hydrodynamics.’**‘Two further works, one on the mathematical theory of heat and the other on hydrodynamics, were in preparation at the time of his death.’*

**Origin**

Late 18th century from modern Latin hydrodynamica, from Greek hudro- ‘water’ + dunamikos (see dynamic).

**Pronunciation**

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