stannous chloride

noun Chemistry.
  1. a white, crystalline, water-soluble solid, SnCl2⋅2H2O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.

Origin of stannous chloride

First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018