Chem., used as combining form of mod.L. stannōs-us STANNOUS.
1868. Fownes’ Chem. (ed. 10), 445. Tin … forms two well-defined classes of compounds, namely, the stannous compounds, in which it is bivalent,… and the stannic compounds, in which it is quadrivalent…; also a few compounds called stannoso-stannic compounds, of intermediate composition.
1873. Watts, Fownes’ Chem. (ed. 11), 444. Stannous Chloride unites with the chlorides of the alkali-metals forming crystallisable double salts,… called Stannosochlorides.
