Voir les mots dérivés de osmiridium.
Aucune définition officielle pour le moment...
a hard, heavy, metallic element having the greatest density of the known elements and forming octavalent compounds, as OsO 4 and OsF 8 : used chiefly as a ...
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a very hard corrosion-resistant white or grey natural alloy of osmium and iridium in variable proportions, often containing smaller amounts of platinum, ruthenium ...
http://dictionary.reference.com/browse/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 ...
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A bluish-white, hard, brittle and extremely dense metallic element, found in small amounts in osmiridium, nickel, and platinum ores. It is used as a platinum ...
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os·mi·rid·i·um n. A mineral that is a natural alloy of osmium and iridium with small inclusions of platinum, rhodium, and other metals, used in needles and wearing ...
http://www.merriam-webster.com/dictionary/osmium
A natural iridium-osmium alloy composed of 10-77% iridium, 17-80% osmium, 0- 10% platinum, 0-17% rhodium, 0-9% ruthenium, 0-2% iron, and 0-1% copper; ...
http://www.merriam-webster.com/dictionary/osmium
a very hard, bluish-white, amorphous, metallic chemical element, one of the platinum metals: it occurs in the form of an alloy with platinum and iridium and is ...
http://www.thefreedictionary.com/osmium
Osmium (from Greek osme (????) meaning "smell") is a chemical element with symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal ...
http://www.thefreedictionary.com/osmium