Word Study
europium
CIDE DICTIONARY
europium, n. [NL.; Europe + -ium, as in aluminium.].
A metallic element of the rare-earth group (Lanthanide series), discovered spectroscopically by Demarcay in 1896. Symbol, Eu ; atomic number 63; at. wt., 151.965 (C=12.011); valence = +2 or +3. [Webster 1913 Suppl.]
OXFORD DICTIONARY
europium, n. Chem. a soft silvery metallic element of the lanthanide series, occurring naturally in small quantities.
Usage
Symb.: Eu.
Etymology
mod.L f. Europe
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