• synonyms


[kyoo-pruh s, koo-]
See more synonyms for cuprous on Thesaurus.com
  1. containing copper in the univalent state, as cuprous oxide, Cu2O.
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Origin of cuprous

First recorded in 1660–70; cupr- + -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for cuprous

cupreous, cupriferous, cuprous

Examples from the Web for cuprous

Historical Examples of cuprous

  • The solution of cuprous chloride is prepared by dissolving 10·3 grms.

    Poisons: Their Effects and Detection

    Alexander Wynter Blyth

  • In a general way, according to the later authors, they were largely lead oxide, and contained from 5% to 20% cuprous oxide.

    De Re Metallica

    Georgius Agricola

  • Those are chromic acid, cuprous chloride (sub- or proto-chloride of copper), and bleaching- powder.

  • (β) The blood-red substance consists chiefly of cuprous oxide with an admixture of tin oxide.

  • It contains chlorine, apparently as cuprous chloride, sometimes in considerable quantity.

British Dictionary definitions for cuprous


  1. of or containing copper in the monovalent state
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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

cuprous in Science


[kōōprəs, kyōō-]
  1. Containing copper, especially copper with a valence of 1. Compare cupric.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.