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cupreous

[kyoo-pree-uh s, koo-]
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adjective
  1. copper-colored; metallic reddish-brown.
  2. consisting of or containing copper; copperlike.
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Origin of cupreous

1660–70; < Late Latin cupreus, equivalent to cupr(um) copper1 + -eus -eous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for cupreous

Historical Examples

  • The cupreous precipitate must be triturated with lime, after it is nearly dry, to bring out the fine velvety blue colour.

    A Dictionary of Arts, Manufactures and Mines

    Andrew Ure

  • Copper was named after Venus, and cupreous salts were known as venereal salts.

  • These crystals are merely some of the cupreous salt forced over by the heat.

  • Finally they must be winced through dilute sulphuric acid to clear up the white, by removing the cupreous tinge.


British Dictionary definitions for cupreous

cupreous

adjective
  1. of, consisting of, containing, or resembling copper; coppery
  2. of the reddish-brown colour of copper
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Word Origin

C17: from Late Latin cupreus, from cuprum copper 1
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

Word Origin and History for cupreous

adj.

1660s, from Late Latin cupreus "of copper," from cuprum, alternative form of cyprum "copper" (see copper (n.1)). Related: Cupric (1799).

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Online Etymology Dictionary, © 2010 Douglas Harper