1. Mixture is a material made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to 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.
2. It is a combination of two or more signals that retain their characteristics—even when they interact to produce beat-frequency products.
3. It is a diffusion of one substance throughout another, without a solution or a chemical reaction resulting.
See also, Mixture Melting point,