Definify.com
Webster 1913 Edition
Stannous
Stan′nous
(-nŭs)
, Adj.
(Chem.)
Pertaining to, or containing, tin; specifically, designating those compounds in which the element has a lower valence as contrasted with
stannic
compounds. Stannous chloride
(Chem.)
, a white crystalline substance,
SnCl2.(H2O)2
, obtained by dissolving tin in hydrochloric acid. It is used as a mordant in dyeing.