from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Relating to or containing copper, especially with valence 1.

from The Century Dictionary.

  • Same as cupric.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Chem.) Of, pertaining to, or derived from, copper; containing copper; -- said of those compounds of copper in which this element is present in its highest proportion.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Of or of the nature of copper.
  • adjective chemistry Containing copper with an oxidation number of 1.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective of or containing divalent copper


from Wiktionary, Creative Commons Attribution/Share-Alike License

Ultimately from Latin cuprum ("copper").


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