Fluid

Name:
Fluid
Detailed information:
Any material or substance that changes shape or direction uniformly in response to an external force imposed on it. The term applies not only to liquids but also gases and finely divided solids. Fluids are broadly classified as Newtonian and non-Newtonian depending on their obedience to the laws of classical mechanics.See Liquid, Newtonian; Rheology; Fluidization; Hydraulic Fluid.