neodymium

noun

neo·​dym·​i·​um ˌnē-ō-ˈdi-mē-əm 

: a silver-white to yellow metallic element of the rare-earth group that is used especially in magnets and lasers see Chemical Elements Table

Examples of neodymium in a Sentence

Recent Examples on the Web

ReElement, in partnership with Vulcan Elements, aims in the next few years to produce 10,000 metric tons of neodymium-iron-boron magnets used not only in EVs, but also wind-turbine generators, hard-disk drives and MRI machines. —Scott Neuman, NPR, 21 Nov. 2025

For one, the agreement covers mainly neodymium and praseodymium, which are only two of the 17 rare-earth elements. —Eva Roytburg, Fortune, 18 Nov. 2025

Formation under ambient conditions Monazite is a phosphate mineral rich in REEs such as cerium, lanthanum, and neodymium. —Aman Tripathi, Interesting Engineering, 12 Nov. 2025

The boy, whose identity was not disclosed, ate between 80 and 100 neodymium magnets, each five millimeters by two millimeters in size, according to the report. —Hanna Park, CNN Money, 27 Oct. 2025

Word History

Etymology

neo- + (di)dymium, after German Neodym

First Known Use

1885, in the meaning defined above

Rhymes for neodymium

• praseodymium

Kids Definition

neodymium

noun

neo·​dym·​i·​um ˌnē-ō-ˈdim-ē-əm 

: a silver-white to yellow metallic chemical element see element

Medical Definition

neodymium

noun

neo·​dym·​i·​um ˌnē-ō-ˈdim-ē-əm 

: a yellow metallic element of the rare-earth group

—symbol Nd see Chemical Elements Table