OSMIUM
\ˈɒzmi͡əm], \ˈɒzmiəm], \ˈɒ_z_m_iə_m]\
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Osmium. A very hard, gray, toxic, and nearly infusible metal element, atomic number 76, atomic weight 190.2, symbol Os. (From Dorland, 28th ed)
By DataStellar Co., Ltd
By Daniel Lyons
By Willam Alexander Newman Dorland
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A metallic element, associated in nature with platinum and iridium. The metal is used for incandescent electric lamps. Its salt, OsO4, is used as a stain. Symbol, Os; atomic weight, 191. It is the heaviest body known, having a specific gravity of 22.477.
By Smith Ely Jelliffe
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.