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Definition of Atomic number 67
1. Noun. A trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds.
Exact synonyms: Ho, Holmium
Generic synonyms: Metal, Metallic Element
Substance meronyms: Gadolinite, Ytterbite
Generic synonyms: Metal, Metallic Element
Substance meronyms: Gadolinite, Ytterbite