Meaning of erbium oxide | Babel Free
Definitions
Any oxide of erbium, but especially the pink amorphous solid Er₂O₃ (erbia) that is used as a phosphor and in optics
Equivalents
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.