a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
<noun.substance>
<noun.substance>
| Th |
|
| atomic number 90 |
|
| thorium |
|
lexical pointers
derivationally related form
semantic pointers
hypernym
substance holonym
hyponym