Source : Webster's Revised Unabridged Dictionary (1913)

Sulphocarbonic \Sul`pho*car*bon"ic\, a. (Chem.)
   Of, pertaining to, or designating, a sulphacid, {H2CSO2}
   (called also {thiocarbonic} acid), or an acid, {H2CS3},
   analogous to carbonic acid, obtained as a yellow oily liquid
   of a pungent odor, and forming salts.