gadolinium

noun

gad·​o·​lin·​i·​um ˌga-də-ˈli-nē-əm 

: a magnetic metallic element of the rare-earth group occurring in combination in monazite and several other minerals see Chemical Elements Table

Examples of gadolinium in a Sentence

Recent Examples on the Web

The new circuits will add roughly 20 tons of terbium, 120 tons of dysprosium, 140 tons of samarium, 20 tons of europium, and 140 tons of gadolinium annually, with terbium and dysprosium online by the end of 2027 and the rest by the end of 2028. — David Blackmon, Forbes.com, 4 Aug. 2026

Production of samarium, europium and gadolinium oxides is scheduled to follow in 2028. — Aamir Khollam, Interesting Engineering, 31 July 2026

Beijing’s control of neodymium, praseodymium, samarium, europium, gadolinium, and yttrium oxides is virtually total. — Steve H. Hanke, Fortune, 10 May 2026

At her scan, the veterinary nurse from the English town of Camberley was injected with gadolinium — a common ingredient in contrast dye — to provide clearer images. — Cara Lynn Shultz, PEOPLE, 27 Jan. 2026

Word History

Etymology

gadolin- (in gadolinite, after Johan Gadolin †1852 Finnish chemist and mineralogist) + New Latin -ium -ium

Note: Named by the Swiss chemist Jean Charles Galissard de Marignac (1817-94); see "Le Y α de M. de Marignac est définitivement nommé gadolinium," Note de M. Lecoq de Boisbaudran, Comptes Rendus hebdomadaires des séances de lʼAcadémie des Sciences, tome 102 (janvier-juin 1886), p. 902.

First Known Use

1886, in the meaning defined above

Rhymes for gadolinium

• actinium
• dominium
• condominium
• pyridinium
• minium

Kids Definition

gadolinium

noun

gad·​o·​lin·​i·​um ˌgad-ᵊl-ˈin-ē-əm 

: a magnetic metallic chemical element see element

Medical Definition

gadolinium

noun

gad·​o·​lin·​i·​um ˌgad-ᵊl-ˈin-ē-əm 

: a magnetic metallic element of the rare-earth group

—symbol Gd see Chemical Elements Table