Language is important and how affected communities become familiarized with the technical aspects in emerging fields, such as nanomedicines to treat HIV, hepatitis C virus, TB and malaria, is an essential part of meaningful, equitable engagement in early stage science. The Illustrated Glossary for Long-Acting Technologies compiles frequent terms and concepts used in the research and development of long-acting technologies. The glossary is a non-exhaustive list and the graphics are artistic renderings meant to spur discussion and assist with community treatment literacy.