|
ra·di·o·ac·tiv·i·ty
radioactivity
|
|
- pronunciation:
- reI
di
o
aek
tI
vih
ti
- features:
- Word Combinations (noun), Word Explorer
part of speech: |
noun |
definition: |
the giving off of energy as a result of the decay of unstable atoms.
Uranium has a high level of radioactivity. |
|
|
|
|