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

  • adj. Of, relating to, or containing tin, especially with valence 2.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Containing bivalent tin.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Pertaining to, or containing, tin; specifically, designating those compounds in which the element has a lower valence as contrasted with stannic compounds.

from The Century Dictionary and Cyclopedia

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

  • adj. of or relating to or containing tin


Late Latin stannum, tin; see stannic + -ous.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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