Dictionary
rare earth
noun
Definition of RARE EARTH
1
: any of a group of similar oxides of metals or a mixture of such oxides occurring together in widely distributed but relatively scarce minerals
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First Known Use of RARE EARTH
1875
Rhymes with RARE EARTH
Medical Dictionary
rare earth
noun \ˌrer-ˈərth\
Medical Definition of RARE EARTH
1
: any of a group of similar oxides of metals or a mixture of such oxides occurring together in widely distributed but relatively scarce minerals
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