gadolinium

American  

[gad-l-in-ee-uhm] / ˌgæd lˈɪn i əm /

noun

Chemistry.

1. a rare-earth metallic element. Gd; 157.25; 64.

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gadolinium British  

/ ˌɡædəˈlɪnɪəm /

noun

1. a ductile malleable silvery-white ferromagnetic element of the lanthanide series of metals: occurs principally in monazite and bastnaesite. Symbol: Gd; atomic no: 64; atomic wt: 157.25; valency: 3; relative density: 7.901; melting pt: 1313±°C; boiling pt: 3273°C (approx.)

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gadolinium Scientific  

/ găd′l-ĭn′ē-əm /

1. A silvery-white, malleable, ductile metallic element of the lanthanide series that has seven natural isotopes and 11 artificial isotopes. Two of the natural isotopes, Gd 155 and Gd 157, are the best known neutron absorbers. Gadolinium is used to improve the heat and corrosion resistance of iron, chromium, and various alloys and in medicine as a contrast medium for magnetic resonance imaging and as a radioisotope in bone mineral analysis. Atomic number 64; atomic weight 157.25; melting point 1,312°C; boiling point approximately 3,000°C; specific gravity from 7.8 to 7.896; valence 3.

2. See Periodic Table

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Other Word Forms

• gadolinic adjective

Etymology

Origin of gadolinium

First recorded in 1885–90; gadolinite, -ium

Example Sentences

However, when injected into a patient's bloodstream, gadolinium travels not only to tumor tissue but also to surrounding healthy tissue.

From Science Daily

In previous studies, the scientists found that the chemical compound gadolinium can block extrusion.

From Science Daily

One possible preventive treatment the researchers are exploring is a compound called gadolinium, which appears to help - at least in mice.

From BBC

But right away, they ran into a problem: in order to function as a contrast agent for MRI scans, gadolinium needs to interact with water.

From Science Daily

The 17 elements are: lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, yttrium.

From Reuters