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noun Chemistry.
  1. a white, water-insoluble powder, Y2O3, used chiefly in incandescent gas and acetylene mantles.
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Origin of yttria

1790–1800; < New Latin, named after Ytterby. See ytterbia
Also called yttrium oxide.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for yttria


  1. another name for yttrium oxide
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Word Origin

C19: New Latin, named after Ytterby; see ytterbia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012