Source:http://linkedlifedata.com/resource/umls/id/C0029383
MSH: Osmium. A very hard, gray, toxic, and nearly infusible metal element, atomic number 76, atomic weight 190.2, symbol Os. (From Dorland, 28th ed),CSP: very hard, gray, toxic and nearly infusible metal; atomic number 76, symbol Os.,NCI: An element with atomic symbol Os, atomic number 76, and atomic weight 190.23.