[1] : The Collaborative International Dictionary of English v.0.48

stannous \stan"nous\ -nu^s, a. chem.
   pertaining to, or containing, tin; specifically, designating
   those compounds in which the element has a lower valence as
   contrasted with stannic compounds.
   1913 webster

   stannous chloride chem., a white crystalline substance,
      sncl2.h2o2, obtained by dissolving tin in hydrochloric
      acid. it is used as a mordant in dyeing.
      1913 webster
see also:
stannic stannous chloride sncl2.h2o2 

[2] : WordNet (r) 2.0

stannous
     adj : of or relating to or containing tin syn: stannic
see also:
stannic 

Stannous >> S Words
Stannous, definition of term: Stannous
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