vis·cos·i·ty (v -sk s -t )n. pl. vis·cos·i·ties 1. The condition or property of being viscous. 2. Physics Coefficient of viscosity. |
viscosity [vɪsˈkɒsɪtɪ]
n pl -ties
1. the state or property of being viscous
2. (Physics / General Physics) Physics
a. the extent to which a fluid resists a tendency to flow
b. Also called absolute viscosity a measure of this resistance, equal to the tangential stress on a liquid undergoing streamline flow divided by its velocity gradient. It is measured in newton seconds per metre squared. Symbol η See also kinematic viscosity, specific viscosity
| viscosity (v-sks-t) The resistance of a substance to flow. For example, water has a lower viscosity than molasses and flows more easily. Viscosity is related to the concept of shear force; it can be understood as the effect of different layers of the fluid exerting shearing force on each other, or on other surfaces, as they move against each other. Viscosity lies behind the skin friction component of drag.  Kinematic viscosity is a measure of the rate at which momentum is transferred through a fluid. It is measured in stokes. Dynamic viscosity is a measure of the ratio of the stress on a region of a fluid to the rate of change of strain it undergoes. It is equal to the kinematic viscosity times the density of the fluid. It is measured in pascal-seconds or poises. |
viscosity
the quality or condition of being able to adhere to things. — viscous, adj.
See also: Materials, Properties of
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | viscosity - resistance of a liquid to shear forces (and hence to flow) consistency, eubstance, consistence, body - the property of holding together and retaining its shape; "wool has more body than rayon"; "when the dough has enough consistency it is ready to bake" stickiness - the property of sticking to a surface sliminess - a property resembling or being covered with slime glueyness, gluiness, gumminess, ropiness, tackiness, viscidity, viscidness, cohesiveness - the property of being cohesive and sticky |
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