👉 Compressible is a concept in physics that describes objects or fluids that are able to flow when they are compressed. In other words, it refers to an object or fluid that can be compressed and expanded without losing its shape or volume. Compressibility is often used to describe the behavior of gases and liquids, but it also has applications in materials science, such as in the study of compressible fluids and in the design of gas turbines and compressors.