Definition of "nonchemical" [nonchemical]

• Not chemical. (adjective)
• A substance that is not a chemical. (noun)

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• "I think she should get a commendation and a blue ribbon from the 4H club and the American Horticultural Society for innovative use of nonchemical pest control."
• "But homeowners and organic farmers like Mr. Biggins have had to seek out other, nonchemical ways to battle the bug."
• "Deborah Altschuler, president of the National Pediculosis Association, a nonprofit parents group that advocates nonchemical solutions to curing infestations."