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

  • adjective Relating to or containing tin, especially with valence 2.

from The Century Dictionary.

  • Of, pertaining to, or containing tin: specifically applied to those compounds in which tin appears as a bivalent atom: as, stannous oxid, or protoxid of tin (SnO).

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

  • adjective (Chem.) Pertaining to, or containing, tin; specifically, designating those compounds in which the element has a lower valence as contrasted with stannic compounds.
  • adjective (Chem.) a white crystalline substance, SnCl2.(H2O)2, obtained by dissolving tin in hydrochloric acid. It is used as a mordant in dyeing.

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

  • adjective chemistry Containing bivalent tin.

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

  • adjective of or relating to or containing tin


from The American Heritage® Dictionary of the English Language, 4th Edition

[Late Latin stannum, tin; see stannic + –ous.]


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