Hypertext Webster Gateway: "Arsenical"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Arsenical \Ar*sen"ic*al\, a.
Of or pertaining to, or containing, arsenic; as, arsenical
vapor; arsenical wall papers.
{Arsenical silver}, an ore of silver containing arsenic.
From WordNet (r) 1.7 (wn)
arsenical
adj : relating to or containing arsenic; "arsenic vapor"
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