[1] : The Collaborative International Dictionary of English v.0.48

yttrium \yt"trium\, n. nl., from ytterby, in sweden. see
   erbium. chem.
   a rare metallic element of the boron-aluminium group, found
   in gadolinite and other rare minerals, and extracted as a
   dark gray powder. symbol y. atomic number 39. atomic weight,
   88.9. written also ittrium.
   1913 webster +pjc

   note: associated with yttrium are certain rare elements, as
         erbium, ytterbium, samarium, etc., which are separated
         in a pure state with great difficulty. they are studied
         by means of their spark or phosphorescent spectra.
         yttrium is now regarded as probably not a simple
         element, but as a mixture of several substances.
         1913 webster
see also:
erbium ittrium 

[2] : WordNet (r) 2.0

yttrium
     n : a silvery metallic element that is common in rare-earth
         minerals; used in magnesium and aluminum alloys syn: y,
          atomic number 39
see also:
y atomic number 39 

[3] : Elements database 20001107

yttrium
symbol: y
atomic number: 39
atomic weight: 88.905
silvery-grey metallic element of group 3 on the periodic table. found in
uranium ores. the only natural isotope is y-89, there are 14 other
artificial isotopes. chemically resembles the lanthanoids. stable in the
air below 400 degrees, celsius. discovered in 1828 by friedrich wohler.

Yttrium >> Y Words
Yttrium, definition of term: Yttrium
yttrium_pag1.html

Periodic Table of Elements: Yttrium - Y (EnvironmentalChemistry.com)
...Comprehensive data on the chemical element Yttrium is provided on this page; including.....Yttrium oxide and iron oxide combine to form a crystal garnet used in radars. Also used in.....Comprehensive information for the element Yttrium - Y is provided by this page including..
http://www.environmentalchemistry.com/yogi/periodic/Y.html, score=100, date indexed=October 5, 2005, 10:42 pm

It's Elemental - The Element Yttrium
...Yttrium is pronounced as IT-ri-em.History and Uses:Yttrium was discovered by Johan Gadolin.....Although metallic yttrium is not widely used, several of its compounds are. Yttrium oxide.....Today, yttrium is primarily obtained through an ion exchange process from monazite sand..
http://education.jlab.org/itselemental/ele039.html, score=69, date indexed=October 5, 2005, 10:38 pm

Yttrium
...Yttrium oxide also is used to produce yttrium-iron-garnets, which are very effective.....Yttrium oxide is one of the most important compounds of yttrium and accounts for the.....Yttrium iron, aluminum, and gadolinium garnets, with formulas such as Y3Fe5O12 and..
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Yttrium Sources Presented at Stanfordmaterials.com
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http://www.stanfordmaterials.com/yttrium_t.html, score=58, date indexed=October 5, 2005, 2:43 am

Yttrium [Y] [39] - Chemical element datasheet - Periodic Table of the...
...Yttrium oxide and iron oxide combine to form a crystal garnet used in radar.   © 2000.....Yttrium.. Symbol: Y.. Atomic number: 39.. Atomic mass: 88.90585.. Group: Transition Metal.....The chemical element [Y] - Yttrium - Datasheet..... .. ChemGlobe..Periodic Table of the..
http://www.vcs.ethz.ch/chemglobe/ptoe/_/39.html, score=55, date indexed=February 19, 2005, 4:42 pm

Chemical Elements.com - Yttrium (Y)
...I currently do not know of any links for Yttrium. If you do, please let me know .. MLA.....com - Yttrium. <http://www.chemicalelements.com/elements/y.html>. For more information.....Yttrium ..Symbol: Y ..Atomic Number: 39 ..Atomic Mass: 88.90585 amu ..Melting Point: 1523..
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Chemistry : Periodic Table : yttrium : index
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Yttrium
...Yttrium occurs in Yttria. Yttrium was present in elevated levels in the moon rock returned.....Yttrium.. Yttrium, Y, is a transition metallic element found in Group IIIa of the periodic.....Yttrium is used ..in the red phosphors in colour TV tubes, in magnets in microwave..
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yttrium. The Columbia Encyclopedia, Sixth Edition. 2001-05
...Yttrium metal has found some use alloyed in small amounts with other metals. Yttrium is.....Yttrium is a highly crystalline iron-gray metal. Usually considered a rare-earth metal, it.....Yttrium is fairly stable in air but oxidizes readily when heated. It reacts with water and..
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