Anisotropic media refers to materials or systems in which the physical properties, such as conductivity, elasticity, or thermal conductivity, vary with direction. This means that the properties of the material are not uniform in all directions, but rather depend on the orientation of the measurement or observation. Anisotropic materials exhibit different behaviors when encountered by radiation, sound, or other forms of energy, making them important in fields such as materials science, physics, and engineering. Researchers studying anisotropic media seek to understand and manipulate these directional properties for various applications, such as designing advanced materials, controlling the flow of waves, or improving the performance of devices and systems.