SCIENCE AND TECHNOLOGY ENGLIAH FOR MECHANICAL ENGINEERING a definition locates its subject in a class and then proceeds to point out the characteristics that make it differ from other items in that class and that, therefore, allow it to be assigned to a subclass. This process is, it is clear, a special variant of the process of classification. A definition simply sets its subject in a limited scheme of classification The process of definition is, like classification, a natural way the mind works. It is no more arbitrary than other methods of exposition we have studied. We make definitions constantly and instinctively. Let us examine an example of how the process worksSCIENCE AND TECHNOLOGY ENGLISH FOR MECHANICAL ENGINEERING A definition locates its subject in a class and then proceeds to point out the characteristics that make it differ from other items in that class and that, therefore, allow it to be assigned to a subclass. This process is, it is clear, a special variant of the process of classification. A definition simply sets its subject in a limited scheme of classification. The process of definition is, like classification, a natural way the mind works. It is no more arbitrary than other methods of exposition we have studied. We make definitions constantly, and instinctively. Let us examine an example of how the process works