| 单词 | viscosity |
| 释义 | 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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