• synonyms


See more synonyms on Thesaurus.com
  1. a white-to-yellow, heavy powder, cerium dioxide, CeO2, usually derived from cerium nitrate by decomposition with heat: used chiefly in ceramics, glass polishing, and decolorizing.

Origin of ceria

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ceria

Historical Examples

  • Greater or less proportions of ceria decreased the light-output.

    Artificial Light

    M. Luckiesh

  • It is the ceria that gives the light, yet a little more of it will lower the luminosity.

    Creative Chemistry</p>

    Edwin E. Slosson

  • The oxyacetylene flame is concentrated upon a small pellet of ceria, which provides a brilliant source of small dimensions.

    Artificial Light

    M. Luckiesh

  • These crude earths, yttria and ceria, have supplied most if not all of the “rare earth” metals.

  • In this way a very high initial illuminating power was obtained, which, however, rapidly fell as the ceria slowly volatilized.

British Dictionary definitions for ceria


  1. another name (not in technical usage) for ceric oxide

Word Origin

New Latin, from cerium
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