Find the word definition

Crossword clues for zirconium

The Collaborative International Dictionary
Zirconium

Zirconium \Zir*co"ni*um\, n. [NL.] (Chem.) A rare element of the carbon-silicon group, intermediate between the metals and nonmetals, obtained from the mineral zircon as a dark sooty powder, or as a gray metallic crystalline substance. Symbol Zr. Atomic weight, 90.4.

Douglas Harper's Etymology Dictionary
zirconium

metallic chemical element, 1808, coined by German chemist and mineralogist Martin Heinrich Klaproth (1743-1817) in 1789; so called because it was found in zircon.

Wiktionary
zirconium

n. a metallic chemical element (''symbol'' Zr) with an atomic number of 40.

WordNet
zirconium

n. a lustrous gray strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon [syn: Zr, atomic number 40]

Wikipedia
Zirconium

Zirconium is a chemical element with symbol Zr and atomic number 40. The name of zirconium is taken from the name of the mineral zircon, the most important source of zirconium. The word zircon comes from the Persian word zargun زرگون, meaning "gold-colored". It is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. Zirconium forms a variety of inorganic and organometallic compounds such as zirconium dioxide and zirconocene dichloride, respectively. Five isotopes occur naturally, three of which are stable. Zirconium compounds have no known biological role.

Usage examples of "zirconium".

If you consider an alphabetical listing of the elements, actinium, element number eighty-nine, is first on the list, and zirconium, element number forty, is the last on the list.

The biologist pressed the switch, the lid closed and immediately five or six of the black monsters fastened on to the zirconium covered tank.

It also mentions tin, cadmium, lead, bismuth, cobalt, titanium, vanadium, boron, sodium and zirconium as special purpose additives.

Montpelier, then fissioned in a purposely ugly way in such a way as to create like hellacious amounts of highly poisonous radioactive wastes, which are mixed with heavy water and specially heated-zirconium-piped through special heavily guarded heated zirconium pipes back down to Montpelier as raw materiel for the massive poisons needed for toxic lithiumization and waste-intenseness and annular fusion.

Cameras, lights, and reflectors were all focused on a very fluffy cat the color of an underripe cantaloupe, wearing a cubic zirconium collar.

Sample contains small amts manganese, carbon, sulfur, phosphorus, and silicon, some nickel, zirconium, and tungsten with admixture chromium, molybdenum, and vanadium.

The titanium/ zirconium ratio in the chondrules of the ocean sample showed ultradepleted zirconium.

He told me it was real, but it's stainless steel and cubic zirconium.

Crocodile tears shone like cubic zirconium on her cheeks while she inflated her lungs for a yell that would, no doubt, bring the bad guys crashing down on them.

An early mixture of magnesium and perchlorate of potash has since given way to an even slower-burning mix of aluminum powder and potassium permanganate which will probably remain standard until the last Musky has been slain (long-range plans for long-range artillery shot will have to wait until we can find a good cheap source of cerium, zirconium or thorium—.

An early mixture of magnesium and perchlorate of potash has since given way to an even slower-burning mix of aluminum powder and potassium permanganate which will probably remain standard until the last Musky has been slain (long-range plans for long-range artillery shot will have to wait until we can find a good cheap source of cerium, zirconium or thoriumunlikely in the near future).

The moderator is zirconium hydride, and you control the reaction by rotating these cylinders on the outside of the core, which&mdash.