Hydraulics is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases.

What does word hydraulic mean?

1 : operated, moved, or effected by means of water. 2a : of or relating to hydraulics hydraulic engineer. b : of or relating to water or other liquid in motion hydraulic erosion.

What does hydraulic mean in science?

hydraulics, branch of science concerned with the practical applications of fluids, primarily liquids, in motion. It is related to fluid mechanics (q.v.), which in large part provides its theoretical foundation.