👉 Nondiffusibility is a concept in physics and engineering that describes how a material behaves under its own action. In other words, it refers to the ability of a material to resist or resistively change its properties when subjected to an external force. The term "differential" is often used to describe nondiffusibility because it implies that the material's behavior is influenced by changes in its own state rather than by any external forces. This can be contrasted with "continuous," which refers