Erbia
The Century Dictionary and Cyclopedia
noun.
In
chem.
, the oxid of the metal erbium (Er
2
O
3
), a white powder soluble in acids only.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
erbium oxide
Er2O3; Discovered in 1843, by Carl Gustaf Mosander.
Word Usage
"The other members of the group closely resemble it, and amongst them are erbia, terbia, ytterbia, scandia, &c. BERYLLIA."