viscosity
/vɪsˈkɒsətɪ/noun
(pl. -ies)［mass noun］
1- the state of being thick, sticky, and semi-fluid in consistency, due to internal friction黏稠, 黏性。
1.1
- count noun a quantity expressing the magnitude of such friction, as measured by the force per unit area resisting a flow in which parallel layers unit distance apart have unit speed relative to one another黏度。
词源
late Middle English: from Old French viscosite or medieval Latin viscositas, from late Latin viscosus （see VISCOUS）.