erbium
noun
- chemical element with atomic number 68
Wiktionary
Pronunciation: /ˈɜː.bɪ.əm/ / /ˈɝ.bi.əm/
noun
Etymology: Borrowed from New Latin erbium; itself from Swedish Ytterby (the name of the town where the element was discovered) + -ium. Coined by Swedish chemist and mineralogist Carl Gustaf Mosander in 1843. Doublet of terbium, ytterbium, and yttrium.
- A chemical element (symbol Er) with atomic number 68: a silvery-white metal, in nature always found in combination with other elements.
- A single atom of this element.