Definitions for: Yttrium

[n] a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys

Webster (1913) Definition: Yt"tri*um, 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 weight, 89. [Written also
ittrium.]

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.

Synonyms: atomic number 39, Y

See Also: fergusonite, gadolinite, metal, metallic element, xenotime, ytterbite

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