Meaning of OSMIUM in English

[os.mi.um] n [NL, fr. Gk osme odor] (1804): a hard brittle blue-gray or blue-black polyvalent metallic element of the platinum group with a high melting point that is the heaviest metal known and is used esp. as a catalyst and in hard alloys

Merriam-Webster English vocab.      Английский словарь Merriam Webster.