Definition: Nondispersive is a concept in physics that describes how waves or particles behave when they travel through a medium. In other words, it means that particles do not propagate at a constant speed or direction, but instead have a random velocity and path-dependent motion. This property of nondispersion allows for the creation of wave patterns that are not affected by the source or observer's position. This is particularly useful in fields like optics, where the behavior of light waves can be influenced by the medium they