"Arsenious" is a word in ENGLISH

arsenious ENGLISH
Definition:

Pertaining to, consisting of, or containing, arsenic;
as, arsenious powder or glass.

arsenious ENGLISH
Definition:

Pertaining to, or derived from, arsenic, when having an
equivalence next lower than the highest; as, arsenious acid.

Few words of positivity

And no wonder; for the new technique of "subliminal projection," as it was called, was intimately associated with mass entertainment, and in the life of civilized human beings massed entertainment now plays a part comparable to that played in the Middle Ages be religion.

Aldous Huxley, Brave New World / Brave New World Revisited

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arsenic ENGLISH

Pertaining to, or derived from, arsenic; -- said of those compounds of arsenic in which this element has its highest …

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arsenical ENGLISH

Of or pertaining to, or containing, arsenic; as, arsenical vapor; arsenical wall papers.

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pyroarsenic ENGLISH

Pertaining to or designating, an acid of arsenic analogous to pyrophosphoric acid.

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sulpharsenic ENGLISH

Of, pertaining to, or designating, a hypothetical sulphacid (called also thioarsenic acid) analogous to arsenic acid, and known only in …

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sulphoarsenic ENGLISH

Of, pertaining to, or containing, sulphur and arsenic; -- said of an acid which is the same as arsenic acid …

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