“…Definition provides the language for science, the language that is "the basic device for categorizing experiencethat is, for creating precisely given kinds of entities, conditions, events, qualities, among the infinite variety of them; separating them from each other, sorting them, and placing them within a given compartment of knowledge" (Hertzler, 1965, p. 40). Similar to classification, it is one of the legitimate aims of science, and is not only a fundamental human act, but is the ultimate foundation of science (Logomach, 1984;Turner & Edgley, 1980).…”