Viscosity/vɪˈskɑːsəti/ Definition 1 of 3Pro Tip 1/3Understanding Thickness Think about how quickly or slowly different liquids pour to grasp viscosity. Pouring syrup illustrates higher viscosity compared to water. Pro Tip 2/3Comparative Language Use comparisons to describe viscosity, especially when contrasting substances like honey and water. Oil exhibits more viscosity than alcohol. Pro Tip 3/3Describing Sensation Viscosity also relates to the feeling of a substance, like a cream's richness on your skin. This lotion has low viscosity; it's very runny.