gadolinium[gad′ō lin′ē əm]
a chemical element, one of the rare-earth elements, that is highly magnetic at low temperatures, superconductive, and has the highest rate of neutron absorption of any element: symbol, Gd; at. no., 64
Origin of gadoliniumModern Latin earlier gadolinia: so named (1886) by P. E. L. de Boisbaudran (1838-1912), French chemist, and J.-C. G. de Marignac (1817-94), Swiss chemist, who had each isolated it, in honor of J. Gadolin (see gadolinite) + -ium
A silvery-white, malleable, ductile, metallic rare-earth element, with unusual magnetic properties including a Curie point at room temperature, obtained from monazite and bastnaesite and used in improving high-temperature characteristics of iron, chromium, and related alloys, and as a contrast medium for magnetic resonance imaging. Atomic number 64; atomic weight 157.25; melting point 1,313°C; boiling point approximately 3,273°C; specific gravity from 7.901; valence 3. See Periodic Table.
Origin of gadoliniumAfter Johan Gadolin, (1760–1852), Finnish chemist.
- A metallic chemical element (symbol Gd) with an atomic number of 64.
Named after Finnish chemist Johan Gadolin.