单词 yttria 释义 yttria Chem.|tr|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).1800Henry Epit. Chem. (1...