+Colloids are stable mixtures where one substance's microscopic particles are uniformly dispersed through another, without truly dissolving. Larger than molecules in [Solutions](/wiki/Solution) yet small enough to resist settling, they form often opaque systems, essential in [Biology](/wiki/Biology) and many materials.
+## See also
+- [Emulsion](/wiki/Emulsion)
+- [Suspension](/wiki/Suspension)
+- [Gel](/wiki/Gel)
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