from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A supposed metallic element obtainable from samarskite, later discovered to be a mixture of yttrium and terbium.

from the GNU version of the Collaborative International Dictionary of English

  • n. A rare and doubtful metallic element said to have been discovered in the mineral samarskite.

from The Century Dictionary and Cyclopedia

  • n. A supposed new chemical element announced by Delafontaine as present in the mineral samars-kite. Its existence has not been confirmed; what was supposed to be its oxid has been shown to be a mixture, probably, for the most part, of terbia and yttria.


Philippe +‎ -ium, after Philippe Plantamour of Geneva, Switzerland. (Wiktionary)


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