The science of deformation and flow of matter. In practice, rheology is principally concerned with extending the "classical" disciplines of elasticity and Newtonian fluid mechanics to more complicated materials. Flows of elastic solutions and of those containing long-chain polymers, including coatings, as well as flows in extruders, molds, and other processing equipment, dominate rheology today.
The study of the deformation and flow of matter, usually liquids or fluids, and of the plastic flow of solids. The concept covers consistency, dilatancy, liquefaction, resistance to flow, shearing, thixotrophy, and VISCOSITY.
A term describing the viscosity and surface tension properties of solder pastes or adhesives.