osmium

noun
os·mi·um | \ ˈäz-mē-əm \

Definition of osmium 

: a blue-gray or blue-black hard brittle very heavy polyvalent metallic element with a high melting point that is used especially as a catalyst and in hard alloys — see Chemical Elements Table

First Known Use of osmium

1804, in the meaning defined above

History and Etymology for osmium

New Latin, from Greek osmē odor

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The first known use of osmium was in 1804

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osmium

noun
os·mi·um | \ ˈäz-mē-əm \

Medical Definition of osmium 

: 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 that is used especially as a catalyst and in hard alloys symbol Os — see Chemical Elements Table

More from Merriam-Webster on osmium

Britannica.com: Encyclopedia article about osmium

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