Yttrium Metal (noun) Definition, Meaning & Examples

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noun Chemistry.
  1. any of a subgroup of rare-earth elements, of which the cerium and terbium metals comprise the other two subgroups.
noun
  1. any one of a group of elements including yttrium and the related lanthanides, holmium, erbium, thulium, ytterbium, and lutetium
Yttrium Metal (noun) Definition, Meaning & Examples

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