Os, n.
a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
<noun.substance>
Os atomic number 76 osmium
semantic pointers
hypernym
Word
a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
<noun.substance>
Os atomic number 76 osmium