noun, plural vis·cos·i·ties.
- 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.
QUIZ YOURSELF ON “ITS” VS. “IT’S”!
Origin of viscosity
OTHER WORDS FROM viscosityhy·per·vis·cos·i·ty, noun
Words nearby viscosity
Example sentences from the Web for viscosity
That viscosity limit depends on the Planck constant, a number at the heart of quantum mechanics, the math that governs physics on very small scales.Fundamental constants place a new speed limit on sound|Emily Conover|October 9, 2020|Science News
The lab has also developed various mixtures of magnetic particles and fluids that have “odd viscosity” — a sort of frictionless viscosity that enables waves to travel across the surface of the mixture without losing any energy.
He showed that the knots, links and writhing — ignoring the twisting — don’t lose their combined helicity to viscosity.
For half a century it’s been known that vortex helicity is conserved in an ideal fluid — basically, a fluid that has no viscosity, meaning it offers no resistance to an object pushing through it.
That means its viscosity — how thick it is — changes when force is applied to it.
The oil pressure will vary according to weather conditions and viscosity of oil used.Aviation Engines|Victor Wilfred Pag
By the old gravity systems, the flow of oil depended largely upon its viscosity, or thickness.The Gasoline Motor|Harold Whiting Slauson
A viscous precipitate forms which frequently loses its viscosity when heat is applied.The Elements of Bacteriological Technique|John William Henry Eyre
The effect on gelation is also illustrated by the change of viscosity of the sol with time.Animal Proteins|Hugh Garner Bennett
Both the suddenness of their formation and the slowness with which they widen are demonstrative of the non-viscosity of the ice.Hours of Exercise in the Alps|John Tyndall
British Dictionary definitions for viscosity
noun plural -ties
- the extent to which a fluid resists a tendency to flow
- 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 squaredSymbol: η See also kinematic viscosity, specific viscosity