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Webster's New World College Dictionary » viscosity
viscosity
viscosity definition
vis·cos·ity (vis käs′ə tē)
noun pl. viscosities -·ties
- the state or quality of being viscous
- Physics the internal friction of a fluid which makes it resist flowing past a solid surface or other layers of the fluid: symbol, η
- a measure of this; specif., a number indicating the ability of a motor oil to maintain its viscosity with seasonal changes of temperature
Etymology: ME viscosite < ML viscositas
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