A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
radionuclide retardation — The process or processes that cause the time required for a given radionuclide to move between two locations to be greater than the ground water travel time, because of physical and chemical interactions between the radionuclide and the… … Lexicon of Cave and Karst Terminology
Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… … Wikipedia
