Толковый словарь английского языка Oxford English Reference - viscosity
Viscosity
viscosity
n. (pl. -ies) 1 the quality or degree of being viscous. 2 Physics a (of a fluid) internal friction, the resistance to flow. b a quantity expressing this. Phrases and idioms dynamic viscosity a quantity measuring the force needed to overcome internal friction. kinematic viscosity a quantity measuring the dynamic viscosity per unit density. Derivatives viscosimeter n. Etymology: ME f. OF viscosit{eacute} or med.L viscositas (as VISCOUS)
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noun (plural -ties) Etymology: Middle English viscosite, from Anglo-French viscosité, from Medieval Latin viscositat-, viscositas, from Late Latin viscosus viscous Date: 14th century the quality or state of being viscous, the property of resistance to flow in a fluid or semifluid, the ratio of the tangential frictional force per unit area to the velocity gradient perpendicular to the direction of flow of a liquid ...Толковый словарь английского языка
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