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English definition of “chemical”

chemical

noun [C]  /ˈkem·ɪ·kəl/ us  
any basic substance that is used in or produced by a reaction involving changes to atoms or molecules: His business manufactured farm chemicals.

chemical

adjective  /ˈkem·ɪ·kəl/ us  
of, involved with, relating to, or made by using chemicals or chemistry: the chemical industry a chemical plant producing plastics and rubber
chemically
adverb  /ˈkem·ɪk·li/ us  
chemically treated paper
(Definition of chemical from the Cambridge Academic Content Dictionary © Cambridge University Press)
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