|
|
plu·to·ni·um
 plutonium
|
|
- pronunciation:
- plu
to
ni
 m
- features:
- Word Combinations (noun), Word Explorer
| part of speech: |
noun |
| definition: |
a radioactive chemical element of the actinide series that has ninety-four protons in each nucleus and that is capable of explosive nuclear fission in a chain reaction, used as fuel in some types of nuclear reactors. (symbol: Pu)
|
|
|
|
|
|
|