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In page Polysaccharide:

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Most of these polysaccharides exhibit useful visco-elastic properties when dissolved in water at very low levels.[3] This makes various liquids used in everyday life, such as some foods, lotions, cleaners, and paints, viscous when stationary, but much more free-flowing when even slight shear is applied by stirring or shaking, pouring, wiping, or brushing. This property is named pseudoplasticity or shear thinning; the study of such matters is called rheology.[citation needed]