The glossary is primarily composed of morphological terms, characters and character states used to identify included species. Most of the glossary terms are illustrated with line drawings and specimen photographs. These thumbnails link to full-scale versions of the images. Related terms are also linked to each other.
The 'lexicon' module of Scratchpads allows definitions to appear when users hover over terms that appear in the text. When clicked, the terms link to their respective glossary page where associated media are also displayed. Users with 'editor' and 'maintainer' privileges can edit existing terms and add new terms. Several resources used for term definitions are Bolton's Identification Guide to Ant Genera of the World (1994), the Torre-Bueno Glossary of Entomology, and Antwiki.org.