資料來源 : Webster's Revised Unabridged Dictionary (1913)

Hydrosulphurous \Hy`dro*sul"phur*ous\, a. (Chem.)
   Pertaining to, or designating, an acid obtained by the
   reduction of sulphurous acid. See {Hyposulphurous acid},
   under {Hyposulphurous}.