neodymium

Noun

neodymium (countable and uncountable, plural neodymiums)

1. A chemical element (symbol Nd) with an atomic number of 60: a hard, slightly malleable silvery rare earth metal that quickly tarnishes in air and moisture.
   • Other rare elements, like neodymium, exist in more than one isotopic form, the ratios of which can provide a measure of the depth from which the flow material may ultimately have been derived.2004, Richard Fortey, The Earth, Folio Society, published 2011, page 63
   • The most important application of dysprosium and terbium, which belong to a subgroup known as the heavy rare earths, is in devices called neodymium boron magnets, or neo magnets for short.2025 July 18, Timothy McLaughlin, “A Rebel Army Is Building a Rare-Earth Empire on China's Border. The Kachin Independence Organization fought for decades in obscurity. Now it's supplying essential...
   1. (countable) An atom of this element.