Colloid

Mixture of an insoluble substance microscopically dispersed throughout another substance

A colloid is a mixture in which one substance, consisting of microscopically dispersed insoluble particles, is suspended throughout another substance. Some definitions specify that the particles must be dispersed in a liquid, while others extend the definition to include substances like aerosols and gels. A colloid has a dispersed phase (the suspended particles) and a continuous phase (the medium of suspension).

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