noun (plural -ties) Etymology: Middle English viscosite, from Anglo-French viscosité, from Medieval Latin viscositat-, viscositas, from Late Latin viscosus viscous Date: 14th century 1. the quality or state of being viscous 2. the property of resistance to flow in a fluid or semifluid 3. the ratio of the tangential frictional force per unit area to the velocity gradient perpendicular to the direction of flow of a liquid — called also coefficient of viscosity

New Collegiate Dictionary. 2001.


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  • viscosity — [vis käs′ə tē] n. pl. viscosities [ME viscosite < ML viscositas] 1. the state or quality of being viscous 2. a) Physics the internal friction of a fluid which makes it resist flowing past a solid surface or other layers of the fluid: symbol, η …   English World dictionary

  • Viscosity — Vis*cos i*ty, n. [Cf. F. viscosit[ e], LL. viscositas.] 1. The quality or state of being viscous. [1913 Webster] 2. (Physics) A property possessed by a viscous fluid, being a resistance to the forces causing a fluid to flow, caused by… …   The Collaborative International Dictionary of English

  • viscosity — index adhesion (affixing) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • viscosity — (n.) early 15c., from O.Fr. viscosite or directly from M.L. viscositas, from L. viscosus (see VISCOUS (Cf. viscous)) …   Etymology dictionary

  • viscosity —  Viscosity  Вязкость   Свойство текучих тел (жидкостей и газов) оказывать сопротивление перемещению одной их части относительно другой. Одно из трёх явлений переноса. Вязкость твёрдых тел обладает рядом специфических особенностей и… …   Толковый англо-русский словарь по нанотехнологии. - М.

  • viscosity — ► NOUN (pl. viscosties) 1) the state of being viscous. 2) a quantity expressing the magnitude of internal friction in a fluid, as measured by the force per unit area resisting uniform flow …   English terms dictionary

  • Viscosity — For other uses, see Viscosity (disambiguation). Viscosity The substance above has lower viscosity than the substance below SI symbol: μ, η SI unit: Pa·s  …   Wikipedia

  • viscosity — /vi skos i tee/, n., pl. viscosities. 1. the state or quality of being viscous. 2. Physics. a. the property of a fluid that resists the force tending to cause the fluid to flow. b. the measure of the extent to which a fluid possesses this… …   Universalium

  • viscosity — ALASKA VOLCANO OBSERVATORY GLOSSARY A measure of resistance to flow in a liquid (water has low viscosity while honey has a higher viscosity.) GLOSSARY OF VOLCANIC TERMS A measurement of the ratio of shear stress to the rate of shear strain in a… …   Glossary of volcanic terms

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  • viscosity — [1] A measure of an oil s ability to pour or be thick. Every container of oil is marked with the viscosity of the oil. Straight weight (also called single viscosity or single weight ) oil has a single number like 30 weight. A lower number means… …   Dictionary of automotive terms

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