Nuclear Energy and Nuclear Disasters. (adjective) Strictly: relating to a nucleus; relating to or using energy released in nuclear fission or fusion. The adjective 'nuclear' is used in many phrases to modify a noun that it cannot logically modify. It must be borne in mind that the meaning of such phrases may be unclear. These phrases may therefore be open to misunderstanding, misrepresentation or mistranslation, and their usage may need to be explained. Such phrases include: nuclear accident; nuclear community; nuclear emergency; nuclear facility; nuclear fuel; nuclear incident; nuclear installation; nuclear material; nuclear medicine; [a] nuclear power; nuclear sabotage; nuclear safety; nuclear security; nuclear terrorism; nuclear trafficking; nuclear watchdog; and nuclear weapon. For example, strictly speaking, 'nuclear material' primarily means the material of the atomic nucleus