astatine, n.
(astatines)
(astatines)
a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
<noun.substance>
At astatine atomic number 85
semantic pointers
hypernym
Word
a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
<noun.substance>
At astatine atomic number 85