Erbium
6 lettersnounrareUpdated June 2026
Definition
A soft, silvery-grey trivalent metallic element of the rare earth group, commonly found in association with yttrium.
“Erbium is used in fibre-optic cables to amplify light signals over long distances.”
Pronunciation
Syllables
er·bi·um
Word Game Tips
Wordle
The -IUM ending is a reliable clue for chemical element names, three vowels and uncommon B make it tricky.
Scrabble
Worth 10 points with B and M contributing 3 each, a strong play when the -IUM rack pattern arises.
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