Colloidal silicas are suspensions of fine amorphous, nonporous, and typically spherical silica particles in a liquid phase.

Particles dispersed in a fluid.

Particles dispersed in a medium.

Particles dispersed in a medium.

(alternative medicine, pseudoscience) colloid consisting of silver particles suspended in liquid, originally used by doctors from the early 20th century until the 1940s (when antibiotics emerged) and then experiencing a revival from about 1990, when it was marketed with scientifically unsupported claims of it being an essential mineral supplement, or that it can prevent or treat numerous diseases

A colloidal crystal is an ordered array of colloidal particles and fine grained materials analogous to a standard crystal whose repeating subunits are atoms or molecules.

Dispersed particles form network structure.