| Answer | Crossword Clue |
|---|---|
| plutoniums | PLUTONIUM, a naturally radioactive, silvery, metallic transuranic element |
| plutonium | a naturally radioactive, silvery, metallic transuranic element |
| plutonium | The chemical element of atomic number 94, a dense silvery radioactive metal of the actinide series, used as a fuel in nuclear reactors and as an explosive in nuclear fission weapons. Plutonium only occurs in trace amounts in nature but is manufactured in nuclear reactors from uranium-238 |
