Didymium Definition

dī-dĭmē-əm
noun
A rare metal, formerly considered an element but later found to be a mixture of rare-earth elements neodymium and praseodymium: symbol, Di: the name is still used for naming oxides and salts.
Webster's New World
Any commercial mixture of rare-earth elements found in monazite sand.
Webster's New World

Origin of Didymium

  • From Greek didumos twin, double (from the fact that it was usually found associated with the previously discovered lanthanum) dwo- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

Didymium Sentence Examples

  • In 1879, however, Lecoq de Boisbaudran showed that Mosander's "didymium," contained samarium; while the residual "didymium" after removal of samarium, was split by Auer v.

  • Neodymium (Nd) forms the chief portion of the old "didymium."

  • The absorption spectra of cobalt and didymium salts also offer many.

  • From the crude oxide so obtained (which contains lanthanum and didymium oxides) the cerium may be separated by conversion into its double sulphate on the addition of potassium sulphate, the sulphates of the cerium group being insoluble in a saturated solution of potassium sulphate.

  • In its character yttrium is closely allied to, and in nature is always associated with, cerium, lanthanum, didymium and erbium (see Rare Earths).

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Words Starting With

DDIDID

Words Ending With

MUMIUM

Unscrambles

didymium

Words Starting With D and Ending With M

Starts With D & Ends With MStarts With DI & Ends With MStarts With D & Ends With UM

Word Length

8 Letter Words8 Letter Words Starting With D8 Letter Words Ending With M