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Webster 1913 Edition

Arsenious

Ar-se′ni-ous

,
Adj.
[Cf. F.
arsénieux
.]
1.
Pertaining to, consisting of, or containing, arsenic;
as,
arsenious
powder or glass
.
2.
(Chem.)
Pertaining to, or derived from, arsenic, when having an equivalence next lower than the highest;
as,
arsenious
acid
.

Webster 1828 Edition

Arsenious

ARSE'NIOUS

,
Adj.
Pertaining to, or containing arsenic. The arsenious acid, or white oxyd of arsenic, is a combination of arsenic with a less proportion of oxygen than in the arseniac acid.

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