Three related abilities may be used in clairvoyant psychic readings: 1  Clairvoyance, or the ability to see clearly. 2  Clairaudience, or clear hearing.  Clairsentience, or clear feeling (physical or emotional), also known as clear knowing.
In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency. Media having this common property may be termed dispersive media. Sometimes the term chromatic dispersion is used for specificity.
Within any given plant or animal population, or group of individuals of the same species living in the same area, individuals can be spaced in different ways, called dispersion patterns. There are three types of dispersion patterns. Clumped dispersion is when individuals in a population are clustered together, creating some patches with many individuals and some patches with no individuals. In uniform dispersion, individuals are spaced evenly throughout an area.