Longer essays may also contain an introductory page that defines words and phrases of the essay's topic. Most academic institutions require that all substantial facts, quotations, and other porting material in an essay be referenced in a bibliography or works cited page at the end of the text. This scholarly convention helps others (whether teachers or fellow scholars) to understand the basis of facts and quotations the author uses to support the essay's argument and helps readers evaluate to what extent the argument is supported by evidence, and to evaluate the quality of that evidence. The academic essay tests the student's ability to present their thoughts in an organized way and is designed to test their intellectual capabilities.
In an extended definition , the logical definition is elaborated on by various means, all of which are used to make the concept clearer in the reader’s mind. It’s up to you to determine which ones you use, and in what order, taking into account what it is you are defining, what you think your readers know already, whether you think they are simply unfamiliar with the concept, or have got it mixed up with other, somewhat similar concepts, and whether they are already disposed to see things as you see them, or will need convincing.