n.

1. 分散
2. 传播；散布
3. 消散

n.

1. the action of dispersing or the state of being dispersed.
   ▸ (the dispersion) another term for diaspora.
2. a mixture of one substance dispersed in another medium.
3. Physics  the separation of white light into colours or of any radiation according to wavelength.
4. Statistics  the extent to which values of a variable differ from a fixed value such as the mean.