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An agent that produces chemical reactions. Classified under: Nouns denoting substances. Hypernyms (chemical agent is a kind of...): agent (a substance that exerts some force or effect) Hyponyms (each of the following is a kind of chemical agent): active; active agent (chemical agent capable of activity)
Definition of CHEMICAL for Kids. : any substance (as an acid) that is formed when two or more other substances act upon one another or that is used to produce a change in another substance.Spanish Central: Spanish translation of chemical. chemical. noun. : any substance (as an acid) that is formed when two or more other substances act upon one another or that is used to produce a change in another substance.