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[mass noun] The chemical element of atomic number 68, a soft silvery-white metal of the lanthanide series.
- ‘The devices typically consist of a single-mode fiber core doped with erbium, ytterbium, or a combination thereof; other dopants such as thulium can be used, but the development effort is less advanced.’
- ‘The village is Ytterby and the elements are yttrium, erbium, terbium and ytterbium.’
- ‘Is there enough chromium, cobalt, helium, and manganese - not to mention erbium, europium, and gadolinium - on the planet to last indefinitely?’
- ‘But by cooling liquid glass very quickly, CRI achieves a more uniform distribution of atoms, allowing the addition of rare-earth elements such as erbium and ytterbium.’
- ‘For the destructive lasers, meaning carbon dioxide or erbium or blends of those two, the risk of scarring is higher.’
Mid 19th century: modern Latin, from Ytt erb y, in Sweden, where it was first found. Compare with ytterbium.
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