👉 Viscidulous is a type of fluid in which the density and viscosity are both very low, meaning that it behaves like air but has significantly lower specific gravity. In other words, it behaves as if the fluid were much lighter than water, yet its volume does not decrease with increasing pressure, unlike gases. This property makes viscidous fluids useful for applications where high pressure is needed without a significant increase in density, such as in systems that require low viscosity but need to be able to withstand high