from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See yttrium oxide.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. yttrium oxide

from the GNU version of the Collaborative International Dictionary of English

  • n. The oxide, Y2O3, or earth, of yttrium.

from The Century Dictionary and Cyclopedia

  • n. A metallic oxid or earth, having the appearance of a white powder, which is insipid, insoluble in water, and infusible.


New Latin, after Ytterby, a town in Sweden.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ytterby, a town in Sweden (Wiktionary)



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