yttria Chem.
(ˈɪtrɪə)
Also ittria.
[mod.L. (Ekeberg, 1797), f. the name of Ytterby: see ytterbite.]
An earth obtained as a white powder from gadolinite and other rare minerals, consisting of sesquioxide of yttrium (Y2O3).
| 1800 Henry Epit. Chem. (1808) 105 Yttria, or Ittria.—This earth was discovered in 1794..in a stone from Ytterby in Sweden. 1873 Fownes' Chem. (ed. 11) 382 To obtain the earths, yttria and erbia, in the separate state, gadolinite is digested with hydrochloric acid. |