What is the term for the reflection of light from a rough surface?

The term for the reflection of light from a rough surface is diffuse reflection. This occurs because rough surfaces have irregularities that cause incoming light rays to scatter in many different directions, rather than reflecting uniformly. In contrast, specular reflection, which is associated with smooth surfaces, results in reflected light rays maintaining their organized direction, leading to clear images. Since the rough surface does not allow for this uniform reflection, diffuse reflection is the appropriate term to describe the scattering of light that takes place.