Cure Terms Glossary
In its widest sense, viscous means liquid-like - i.e. capable of flow. In this context it seeks to distinguish from (solid) materials which are incapable of flow. Unlike elastic materials, a viscous material flows under load and it its original shape is lost forever.
More strictly, the
word viscous means having a resistance to flow, so that very viscous means
having a high resistance to flow. The resistance of a liquid to flow is
called its viscosity. This resistance is the
internal friction within the material, and imposing a flow against this
resistance results in the irreversible conversion of mechanical energy