Element
platinum Audio
plat·i·num [ plat-n-uhm, plat-nuhm ]
More Information:
ChemID; DrugBank; DailyMed; PDR
Definitions related to platinum:
  • A heavy, soft, whitish metal, resembling tin, with atomic number 78, atomic weight 195.084, symbol Pt. It is used in manufacturing equipment for laboratory and industrial use. It occurs as a black powder (platinum black) and as a spongy substance (spongy platinum) and may have been known in Pliny's time as alutiae.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • A metal that is an important component of some anticancer drugs, such as cisplatin and carboplatin.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • An element with atomic symbol Pt, atomic number 78, and atomic weight 195.09.
    NCI
    U.S. National Cancer Institute, 2021
  • Heavy whitish metal, symbol Pt, atomic number 78; metallic platinum is insoluble except in nitrohydrochloric acid and fusible only at very high temperatures, and therefore used in the manufacture of equipment for laboratory and industrial use; platinum black and spongy platinum act as powerful oxidizing and catalytic agents.
    CRISP Thesaurus
    National Institutes of Health, 2006
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