Glossaries are lists of specialized word definitions contained in technical documentation that can assist the nontechnical user to comprehend fully the technical topic at hand. In a joint project with SAS Institute, I sought to discover how glossaries were first developed, what guidelines are available for technical writers in the writing of glossaries, and what rhetorical technique might be of value for glossary writers. I found that glossaries are much more than simple word lists; they are, in fact, an opportunity for the technical writer to outline and protect the parameters of technical discourse between a company and its customers across multiple communications channels, and different languages. In an increasingly global technical environment, an explicit connection between the rhetorical technique of definition and the writing of glossary definitions should be made to aid technical writers in this task.
Tackabery, Michelle Kidd. Technical Communication Online (2005). Articles>Editing>Glossary