ATOMIC NUMBER 76

 I. (noun) 

Sense 1

Meaning:

A hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known

Synonyms:

atomic number 76; Os; osmium

Classified under:

Nouns denoting substances

Hypernyms ("atomic number 76" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

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