Definitions

rare-earth element

[rair-urth] / ˈrɛərˈɜrθ /

NOUN

group of chemical elements

Synonyms

WEAK

base metal native metal noble metal oxide precious metal rare earth rare metal rare-earth metal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This ring is packed with 648 22cm-long neodymium magnets laced with another rare-earth element, dysprosium, which makes them much less liable to become demagnetised.

From BBC

The price of dysprosium, a “heavy” rare-earth element used in magnets for car motors, almost tripled to $305 a kilogram.

From BusinessWeek

"The country's grasp on the rare-earth element industry could one day give China a strong technological advantage and increase its military superiority," she wrote.

From The Wall Street Journal

The company’s Mountain Pass mine, discovered in 1949 by uranium prospectors who noticed local radioactivity, dominated rare-earth element production through the 1980s.

From New York Times