- 1. n. a bivalent and trivalent metallic element of the rare earth group Source: wordnet
- 2. A metallic element of the rare-earth group, discovered spectroscopically by Demarcay in 1896. Symbol, Eu; at. wt., 152.0. Source: webster
- 3. A metallic element of the rare-earth group, discoveredspectroscopically by Demarcay in 1896. Symbol, Eu; at. wt., 152.0. Source: adambom
- 4. n. a bivalent and trivalent metallic element of the rare earth group Source: ecdict
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