Which of the following is NOT a recommended approach for structuring definitions?

Using circular definitions is not a recommended approach for structuring definitions because they can lead to confusion and ambiguity. A circular definition occurs when a term is defined using the term itself or a variant of it, which does not provide any new information to the reader. This type of definition fails to clarify the meaning and can leave the audience without a clear understanding of the concept being defined.

In contrast, other approaches like sentence definitions, expanded definitions, and parenthetical definitions are effective because they provide clear, precise, and context-rich explanations. Sentence definitions offer a straightforward description in a complete sentence, while expanded definitions elaborate on a term by including examples, additional details, and contexts. Parenthetical definitions embed the definition within a sentence, allowing for immediate clarification without interrupting the flow of the text. These methods enhance understanding and ensure that readers grasp the intended meaning without ambiguity.