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View synonyms for viscosity
viscosity
[ vi-skos-i-tee ]
noun
, plural vis·cos·i·ties.
- the state or quality of being viscous.
- Physics.
- the property of a fluid that resists the force tending to cause the fluid to flow.
- the measure of the extent to which a fluid possesses this property.
viscosity
/ vɪsˈkɒsɪtɪ /
noun
- the state or property of being viscous
- physics
- the extent to which a fluid resists a tendency to flow
- Also calledabsolute 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 η See also kinematic viscosity specific viscosity
viscosity
/ vĭ-skŏs′ĭ-tē /
- 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 .
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Other Words From
- hyper·vis·cosi·ty noun
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Word History and Origins
Origin of viscosity1
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Example Sentences
The oil pressure will vary according to weather conditions and viscosity of oil used.
From Project Gutenberg
By the old gravity systems, the flow of oil depended largely upon its viscosity, or thickness.
From Project Gutenberg
A viscous precipitate forms which frequently loses its viscosity when heat is applied.
From Project Gutenberg
The effect on gelation is also illustrated by the change of viscosity of the sol with time.
From Project Gutenberg
Both the suddenness of their formation and the slowness with which they widen are demonstrative of the non-viscosity of the ice.
From Project Gutenberg
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