rare earth

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

2

: rare earth element

First Known Use of RARE EARTH

1875

Rhymes with RARE EARTH

Ainsworth, brown earth, childbirth, Cudworth, Edgeworth, Farnsworth, Fort Worth, give birth, Hepworth, on earth, rebirth, scorched-earth, self-worth, stillbirth, Tamworth, unearth, Wandsworth, Wentworth, Woolworth, Wordsworth