Os

/oʊz/
IPA guide

Other forms: Ora; Ossa

Definitions of Os
  1. noun
    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, osmium
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    type 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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