1. 
   yttria
   a white, water-insoluble powder, Y₂O₃, used chiefly in incandescent gas and acetylene mantles.
   Found op http://www.allchemicals.info/index/action/detail/keyword/Y/id/1059587198.ph
   
   
2. 
   Yttria
   Yt'tri·a noun [ New Latin See Yttrium .] (Chemistry) The oxide, Y ₂ O ₃ , or earth, of yttrium.
   Found op http://www.encyclo.co.uk/webster/Y/7
   
   
3. 
   yttria
   <chemistry> The oxide, Y2O3, or earth, of yttrium. ... Origin: NL. See Yttrium. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?yttria
   
   
4. 
   Yttria
   • (n.) The oxide, Y2O3, or earth, of yttrium.
   Found op http://thinkexist.com/dictionary/meaning/yttria/
   
   
5. 
   yttria
   1) Powder used in television tubes 2) Yellowish powder used in ceramics
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/yttria/1
   
   

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