Crossword clues for dysprosium
The Collaborative International Dictionary
Dysprosium \Dys*pro"si*um\, n. [NL., fr. Gr. dyspro`sitos hard to get at.] (Chem.) An element of the rare earth-group. Symbol Dy; at. wt., 162.5.
Douglas Harper's Etymology Dictionary
element, obtained 1906 from an earth discovered in 1886, the last to be extracted from the complex earth called yttria, and named dysprosia in reference to the difficulty of obtaining it, from Greek dysprositos "hard to get at, difficult of access," from dys- "bad" (see dys-) + prositos "approachable." With metallic element suffix -ium.
Wiktionary
n. A metallic chemical element (''symbol'' Dy) with an atomic number of 66.
WordNet
n. a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic [syn: Dy, atomic number 66]
Wikipedia
Dysprosium is a chemical element with the symbol Dy and atomic number 66. It is a rare earth element with a metallic silver luster. Dysprosium is never found in nature as a free element, though it is found in various minerals, such as xenotime. Naturally occurring dysprosium is composed of seven isotopes, the most abundant of which is Dy.
Dysprosium was first identified in 1886 by Paul Émile Lecoq de Boisbaudran, but was not isolated in pure form until the development of ion exchange techniques in the 1950s. Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications, and as a component of Terfenol-D (a magnetostrictive material). Soluble dysprosium salts are mildly toxic, while the insoluble salts are considered non-toxic.
Usage examples of "dysprosium".
So ubiquitous is dysprosium, that not one person in a hundred even notices its presence anymore.
Under the influence of dysprosium, the human race can confidently look forward to a time of love, harmony, understanding, and universal peace.
Detected were: iron, silicon, carbon, platinum, gold, lead, indium, gallium, gadolinium, dysprosium, lanthanum, xenon, potassium, astatine.
Tin barely makes it into the top fifty, eclipsed by such relative obscurities as praseodymium, samarium, gadolinium, and dysprosium.
Other elements are less familiar - hafnium, erbium, dysprosium and praseodymium, say, which we do not much bump into in everyday life.
Such stellar nuclear reactions do not readily generate erbium, hafnium, dysprosium, praseodymium or yttrium, but rather the elements we know in everyday life, elements returned to the interstellar gas, where they are swept up in a subsequent generation of cloud collapse and star and planet formation.
That same morning, as all the experts and high officials of the secret police shook their heads, bleary-eyed after a sleepless night, the constructors asked for quartz, vanadium, steel, copper, platinum, rhinestones, dysprosium, yttrium and thulium, also cerium and germanium, and most of the other elements that make up the Universe, plus a variety of machines and qualified technicians, not to mention a wide as sortment of spies--for so insolent had the constructors become, that on the triplicate requisition form they boldly wrote: "Also, kindly send agents of various cuts and stripes at the discretion and with the approval of the Proper Authorities.