The meaning of REACTION is the act or process or an instance of reacting. How to use reaction in a sentence. A chemical reaction is the change that happens when two or more substances are mixed with each other. A reaction is an action taken in response to something. If you're telling your parents that you want to move out, you'll see by their reaction that they're sad about it.

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Reaction Look up reaction in Wiktionary, the free dictionary. Reaction may refer to a process or to a response to an action, event, or exposure. Reaction is used to refer both to an instant response (her reaction was one of amazement) and to a considered response in the form of a statement (the Minister gave his reaction to the court's. Dec 28, 2025ย ยท reaction (plural reactions) An action or statement in response to a stimulus or other event. reaction meaning, definition, what is reaction: something that you feel or do because of.: Learn more. REACTION definition: a reverse movement or tendency; an action in a reverse direction or manner. See examples of reaction used in a sentence. Definition of reaction noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

REACTION definition: a reverse movement or tendency; an action in a reverse direction or manner. See examples of reaction used in a sentence. Definition of reaction noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

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