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English definition of “chemical”

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chemical

noun [C]
 
 
/ˈkemɪkəl/
any basic substance which is used in or produced by a reaction involving changes to atoms or molecules: The government has pledged to reduce the amount of chemicals used in food production. Each year, factories release millions of tonnes of toxic chemicals into the atmosphere.
(Definition of chemical noun from the Cambridge Business English Dictionary © Cambridge University Press)
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