rare earth
noun Chemistry.
the oxide of any of the rare-earth elements contained in various minerals.
Origin of rare earth
First recorded in 1875–80
Words nearby rare earth
rar,
rara avis,
rare,
rare bird, a,
rare book,
rare earth,
rare gas,
rare-earth element,
rarebit,
raree show,
rarefaction
Example sentences from the Web for rare earth
It was an ingenious application of the peculiar properties of rare-earth oxides.
Artificial Light |M. LuckieshIn such cases, Investigations had stepped in and the Martian or Earthling troublemaker had been sent to the rare-earth mines.
Blind Spot |Bascom Jones
British Dictionary definitions for rare earth
rare earth
noun
any oxide of a lanthanide
Also called: rare-earth element another name for lanthanide
Medical definitions for rare earth
rare earth
n.
lanthanide