The Import entries and Export entries links enable the teacher to exchange glossaries between courses and even Moodle installations:
You may want to begin a course with a small glossary and let students add to it as they discover new concepts. If you do this, export the beginning glossary so that you have it available for the next course. The next time you teach a course, you can choose to export everything in the completed course (except the student information and the glossary). In the new copy, just create a new and blank Glossary and import the starting Glossary.
Also, note that the editing window enables ...