A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance.- Colloid
A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.- Mixture
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Solution (chemistry)1 links
In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances.
Counter examples are provided by liquid mixtures that are not homogeneous: colloids, suspensions, emulsions are not considered solutions.
Suspension (chemistry)1 links
In chemistry, a suspension is a heterogeneous mixture of a fluid that contains solid particles sufficiently large for sedimentation.
This distinguishes a suspension from a colloid, in which the colloid particles are smaller and do not settle.