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Table of Contents -- yttrium
POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
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yttrium

 : 
Noun
 : 
yt=tri=um

WORDNET DICTIONARY

Noun yttrium has 1 sense

CIDE DICTIONARY

yttriumn. [NL., from Ytterby, in Sweden. See Erbium.].
     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.  [1913 Webster]
    " 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]

OXFORD DICTIONARY

yttrium, n. Chem. a greyish metallic element resembling the lanthanides, occurring naturally in uranium ores and used in making superconductors.

Usage
Symb.: Y.
Etymology
formed as YTTERBIUM
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