This volume contains nearly 30,000 entries from all branches of nuclear engineering excluding biological aspects, health physics, and isotope applications in medicine and agriculture. The terminology used in the International Nuclear Information System (INIS) of the IAEA has been completely taken into account. Each English entry is numbered and is followed by corresponding terms in the other languages. Alphabetical indexes of the German, French, and Russian terms are included. At the end of the volume, there is a section devoted to the transliteration of place-names between the English names and their Cyrillic equivalents, and vice versa.