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a gelatinous or mucinous substance that is present in tissues during disease or naturally (as in the thyroid), a substance made up of particles that are too small to be resolved under a standard light microscope but too large to pass through a semipermeable membrane.

Milk is an emulsion of water and milk fat (liquid phase). An emulsion may be described as a colloid consisting of two or more non-homogenous liquid types, in which the dispersion of the various liquid forms is concentrated in one of the liquids.

Milk has tiny globs of butterfat suspended throughout the mixture. It is an example of liquid in liquid colloid commonly known as emulsion.

In a fog, the dispersed phase is a liquid, and the dispersion medium is a gas. Fog is classified as an aerosol if we want to categorise it as a type of colloid based on its physical condition.

A gaseous phase is spread inside a continuous liquid phase to create foam when shaving cream is applied.Shaving cream is consisting of tiny air bubbles dispersed in liquid. This type of colloid is called foam.