non-arsenical

arsenical

[ahr-sen-i-kuhl]
adjective
1.
containing or relating to arsenic.
noun
2.
any of a group of pesticides, drugs, or other compounds containing arsenic.

Origin:
1595–1605; arsenic + -al1

nonarsenical, adjective
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World English Dictionary
arsenical (ɑːˈsɛnɪkəl)
 
adj
1.  of or containing arsenic
 
n
2.  a drug or insecticide containing arsenic

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

arsenical ar·sen·i·cal (är-sěn'ĭ-kəl)
n.
An agent containing arsenic. adj.
Of, relating to, or containing arsenic.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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