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thulia

[thoo-lee-uh] /ˈθu li ə/
noun, Chemistry
1.
a dense, greenish-white powder, TmO 3 , that on gentle heating exhibits a reddish incandescence: used in the manufacture of thulium metal.
Also called thulium oxide.
Origin
1885-1890
1885-90; thuli(um) + -a4
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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