- a metallic element found combined in zircon, baddeleyite, etc., resembling titanium chemically: used in steel metallurgy, as a scavenger, as a refractory, and as an opacifier in vitreous enamels. Symbol: Zr; atomic weight: 91.22; atomic number: 40; specific gravity: 6.49 at 20°C.
Origin of zirconium
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Examples from the Web for zirconium
He specialized in research and development in zirconium products, and allegedly had distant ties to Iran.Plot Thickens in Grisly French Alps Murders
Barbie Latza Nadeau
October 29, 2012
The other source of vector is the reaction between the zirconium and water.
The zirconium alloy will react with water to produce hydrogen and oxide, but it also produces heat that has to be removed.
The use of zirconium has been in an experimental state, and known sources of supply have been ample for all requirements.
The zirconium silicate, zircon, is a fairly common accessory constituent of granitic rocks and pegmatite veins.
Zirconium, a metallic element often found in connection with silica, commonly in the form of a black powder.The Nuttall Encyclopaedia
Edited by Rev. James Wood
In addition Davy anticipated the isolation of silicon, aluminium, and zirconium.An Introduction to the History of Science
The chief bulk of the zirconium is found in the aqueous solution in the state of double fluorides.
- a greyish-white metallic element, occurring chiefly in zircon, that is exceptionally corrosion-resistant and has low neutron absorption. It is used as a coating in nuclear and chemical plants, as a deoxidizer in steel, and alloyed with niobium in superconductive magnets. Symbol: Zr; atomic no: 40; atomic wt: 91.224; valency: 2, 3, or 4; relative density: 6.506; melting pt: 1855±2°C; boiling pt: 4409°C
C19: from New Latin; see zircon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for 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.
Online Etymology Dictionary, © 2010 Douglas Harper
- A strong ductile metallic element obtained primarily from zircon, used in deodorants and dermatologic preparations. Atomic number 40.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A shiny, grayish-white metallic element that occurs primarily in zircon. It is used to build nuclear reactors because of its ability to withstand bombardment by neutrons even at high temperatures. Zirconium is also highly resistant to corrosion, making it a useful component of pumps, valves, and alloys. Atomic number 40; atomic weight 91.22; melting point 1,852°C; boiling point 4,377°C; specific gravity 6.56 (20°C); valence 2, 3, 4. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.