Uranium Industry Glossary
- Terms commonly used in discussion of the uranium industry and the nuclear fuel cycle.
- http://www.world-nuclear.org/info/inf51.htm

Glossary of Energy Terms
- A large collection published by the United States Department of Energy.
- http://www.eere.energy.gov/consumer/information_resources/index.cfm/mytopic=60001

Holography
- Glossary of holography terms.
- http://www.web-runners.com/LaserExPress/glossary.htm

Glossary of Physics Terms
- Definitions with cross-references to online textbooks.
- http://www.lightandmatter.com/area1glossary.shtml

Dictionary of Composite Materials Technology
- An expanded version based on the print edition by Stuart Lee containing terms from the composites industry and related materials topics.
- http://composite.about.com/library/glossary/blglossary.htm

Astrophysics
- Indexed and cross-referenced glossary of Astrophysics terms.
- http://ie.lbl.gov/education/glossary/glossaryfa.htm