viscosity Meaning, Definition & Usage

  1. noun resistance of a liquid to shear forces (and hence to flow)
    viscousness.

WordNet

Vis*cos"i*ty noun
Etymology
Cf. F. viscosité, LL. viscositas.
Definitions
  1. The quality or state of being viscous.
  2. (Physics) A quality analogous to that of a viscous fluid, supposed to be caused by internal friction, especially in the case of gases.

Webster 1913