Dilatant

Dilatant is a term used to describe a specific type of non-Newtonian fluid that exhibits an increase in viscosity when subjected to shear stress or agitation. In simpler terms, a dilatant fluid becomes thicker or more solid-like when it is stirred, shaken, or otherwise disturbed. This behavior is in contrast to other non-Newtonian fluids, such as shear-thinning fluids (also known as pseudoplastic fluids), which decrease in viscosity when subjected to shear.