Definition of osmium Osmium
/ɑˈzmiʌm/ - [azmeeum] - os•mi•um
We found 7 definitions of osmium from 7 different sources.
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What does osmium mean?
WordNet
NounPlural: osmiums |
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| osmium - a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known | ||
| Os, atomic number 76 | ||
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Wiktionary 
- osmium (Noun)
A heavy metallic chemical element symbol Os with an atomic number of 76.
Webster DictionaryWebster's Unabridged Dictionary 📘
- osmium (n.)
A rare metallic element of the platinum group, found native as an alloy in platinum ore, and in iridosmine. It is a hard, infusible, bluish or grayish white metal, and the heaviest substance known. Its tetroxide is used in histological experiments to stain tissues. Symbol Os. Atomic weight 191.1. Specific gravity 22.477.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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osmium
Chemical element with symbol Os and atomic number 76, grey blue transition metal.
Chambers DictionaryChamber's 20th Century Dictionary 📕
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osmium
ōs′mi-um, n. a gray-coloured metal found in platinum ore, the oxide of which has a disagreeable smell.—adjs. Os′mic, Os′mious. [Gr. osmē, smell, orig. od-mē—ozein, to smell.]
Wikipedia 
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Osmium is a chemical element. It is element number 76 on the periodic table. Its symbol is "Os".
There is not much osmium on earth. There is actually such a small amount that osmium is very expensive.
Osmium is a metal and it does not react very much, and such a metal is known as a "noble metal".
It was discovered in 1804 by Smithson Tennant in London, England. He found it together with Iridium in a bit of Platinum, which he had dissolved in Aqua regia.
Part of speech
🔤- osmium, noun, singular of osmiums.
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