As we've already mentioned, the audience's need for information will drive how much information you provide. If the audience both needs and can handle a lot of information, then get super-detailed. On the other hand, if the audience only needs or only can handle the basics for whatever reason, then keep the definition short and include just the absolutely necessary information.

As with everything you write—and quite literally everything, whether you're writing it for this class, in future classes, or over the rest of your life—you need to consider your audience very carefully.