|
|
 |
|
|
|
|
| deuterium [ dyoo tri əm ] |
noun |
|
| Definition: |
| |
hydrogen isotope: an isotope of hydrogen that has double the mass of ordinary hydrogen because it contains a neutron in its nucleus. Use: tracer in experiments.
Symbol D
|
| [Mid-20th century. < Greek deuteros 'second'] |
|
|
|
