Definitions for "Nuclear waste"
The radioactive by- products formed by fission and other nuclear processes in a reactor. Most nuclear waste is initially contained spent fuel. If this material is reprocessed, new categories of waste result.
Nuclear waste refers to the entire array of radioactive materials created by all aspects of nuclear technology. The most widely known wastes are those produced by the civilian nuclear industry and the nuclear weapons program. Other sources of nuclear waste include radioactive materials produced for medical, research, and industrial applications, and the contaminated sections of dismantled nuclear facilities.
radioactive active waste resulting from the byproducts of nuclear reactions.
Keywords:  terrible, mind, thing
a terrible thing to mind