noun Chemistry.
a white, water-insoluble powder, Y 2 O 3 , used chiefly in incandescent gas and acetylene mantles.
Also called yttrium oxide.

1790–1800; < Neo-Latin, named after Ytterby. See ytterbia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
yttria (ˈɪtrɪə)
another name for yttrium oxide
[C19: New Latin, named after Ytterby; see ytterbia]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
The oxygen sensor in your car is based on the same yttria-stabilized zirconium oxide ceramic.
Yttria-stabilized zirconia is used in the manufacture domestic operations.
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