Arsenious
Pronunciation : Ar*se"ni*ous
Part of Speech : a.
Etymology : [Cf. F. ars?nieux.]
Definition : 1. Pertaining to, consisting of, or containing, arsenic; as, arsenious powder or glass.
2. (Chem.)
Defn: Pertaining to, or derived from, arsenic, when having an equivalence next lower than the highest; as, arsenious acid.
Source : Webster's Unabridged Dictionary, 1913