What is the meaning of the word heterogeneous?

The term "heterogeneous" refers to something that is composed of different or diverse elements. In various contexts, such as science, sociology, and general vocabulary, heterogeneous is used to describe a mixture or group consisting of different kinds or types.

For instance, in a heterogeneous mixture, the components are not uniform and can be easily distinguished from one another, which highlights the idea of difference or diversity. Therefore, the choice "different" accurately encapsulates the essence of the word "heterogeneous."

This meaning stands in contrast to the other options: "unusual" does not convey the concept of variety but rather something out of the ordinary; "clear" pertains to transparency or simplicity, and "comparable" implies similarities rather than differences. Hence, "different" is the most fitting interpretation of "heterogeneous."