rateviscous

Rateviscous is a term that appears to be a compound of "rate" and "viscous." In a scientific or engineering context, it likely refers to a measurement or quantification of how quickly a substance's viscosity changes under specific conditions. Viscosity itself is a measure of a fluid's resistance to flow, essentially its thickness. A substance with high viscosity flows slowly, like honey, while one with low viscosity flows easily, like water.

The "rate" aspect suggests that viscosity is not always constant. For some fluids, known as non-Newtonian fluids, viscosity can change depending on the applied shear rate, temperature, or other external factors. For instance, some fluids become less viscous when stirred (shear-thinning), while others become more viscous (shear-thickening). Therefore, a "rateviscous" measurement would quantify this change.

Without more context, it is difficult to provide a precise definition. However, if encountered in a technical document, it would be prudent to examine the surrounding text for clues regarding the specific phenomenon being measured. This might involve the rate of change of viscosity with respect to time, shear rate, temperature, or pressure. The units of such a measurement would depend on the specific parameters being varied.