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didymium

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noun di·dym·i·um \dī-ˈdi-mē-əm\

Definition of didymium

  1. :  a mixture of rare-earth elements made up chiefly of neodymium and praseodymium and used especially for coloring glass for optical filters



Origin and Etymology of didymium

New Latin, from Greek didymos twin, from dyo two — more at two


First Known Use: 1842


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of or relating to the heavens

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