1. Observe and compare

Look at the behavior you're trying to define and try to relate it to a known behavior, or one you've encountered on other occasions.

Example 1: Let's take the example of rheological behavior, in other words, the way fluids deform as a function of the stresses they are subjected to and the way these stresses are applied, and as a function of time, and therefore speed.

The term "rheopexy" does not exist in most standard dictionaries, or even in some technical dictionaries. The definition is "hardening behavior observed with certain colloidal dispersions". This complicated term simply means that the behavior of the fluid is similar to the behavior of concrete in a concrete mixer; as the speed of the mixer increases, so does the apparent viscosity of the fluid. You've simply made an analogy.

Example 2: observe the height...