Shear thinning is an effect where a fluid`s viscosity—the measure of a fluid`s resistance to flow—decreases with an increasing rate of shear stress. Another name for a shear thinning fluid is a pseudoplastic. This property is found in certain complex solutions, such as lava, ketchup, whipped cream, blood, paint, and nail polish. It is also a..... Found on http://en.wikipedia.org/wiki/Shear_thinning