The IAEA Safety Glossary defines and explains technical terms used in International Atomic Energy Agency safety standards and other safety-related IAEA publications, and it provides information on their usage.

PDFs of the 2007 edition are available in five of the agency’s six official languages: Arabic, Chinese, English, French, and Russian. The Spanish version is still being translated. The English version is monolingual; the others give English equivalents along with same-language definitions.

Thanks to Hank Phillips for the tip.