- a rare-earth metallic element. Symbol: Gd; atomic weight: 157.25; atomic number: 64.
Origin of gadolinium
Examples from the Web for gadolinium
Historical Examples of gadolinium
However, they had enough old Federation-period textbooks still in microprint to know what could be done with gadolinium.
Gadolinium was essential to hyperdrive engines; the engines of a ship the size of the Nemesis required fifty pounds of it.
Her captain wanted fissionables and gadolinium; Count Lionel was building more ships.
- 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.)
Word Origin for gadolinium
metallic element, named 1886 by J.C. Marginac in honor of Johan Gadolin (1760–1852), Finnish minerologist and chemist, who in 1794 first began investigation of the earth which eventually yielded the element and several others.
- A malleable, ductile metallic rare-earth element, used as a contrast medium for magnetic resonance imaging and as a radioisotope in bone mineral analysis. Atomic number 64.
- 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. See Periodic Table.