| Immobilization includes vitrification and encasing nuclear material in ceramic. |
| But some researchers have developed a preservation technique called vitrification, essentially glassifying cells. |
| Current methods involve many solvent extraction cycles and vitrification after nitric acid treatment and evaporation. |
| The plutonium and uranium from spent fuel are recyclable and final waste can be stored or buried after the process of vitrification. |
| As far as regards artists' colours, therefore, vitrification does not impart permanence. |
| The bus ride from the vitrification Plant back to tour headquarters was long. |
