Definition of zirconia in English:

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Pronunciation: /ˌzərˈkōnēə/


Zirconium dioxide, a white solid used in ceramic glazes and refractory coatings and as a synthetic substitute for diamonds in jewelry. See also cubic zirconia.
  • Chemical formula: ZrO2.
Example sentences
  • Cubic zirconia and moissanite are examples of common diamond simulants.
  • Compounds which are used for advanced ceramics include aluminum oxide and zirconia.
  • One concept proposed by researchers at the University of Washington uses zirconia crystals and electricity to convert carbon dioxide into carbon monoxide and oxygen, which can then be used as rocket propellant.


Late 18th century: from zircon + -ia1.

Words that rhyme with zirconia

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For editors and proofreaders

Syllabification: zir·co·ni·a

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