as in response
action or behavior that is done in return to other action or behavior we were startled by her extreme reaction to being jilted by her boyfriend

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of reaction Focused Energy, a startup using lasers to spark fusion energy reactions, is raising a $150 million Series A, a person familiar with the raise tells Axios. Alan Neuhauser, Axios, 1 Apr. 2025 On Monday, Johnson had strong reactions about the grade the team received. Antwan Staley, New York Daily News, 1 Apr. 2025 Hydration, nutrition, and knowing personal limits can help prevent adverse reactions such as dizziness or anxiety. Matt Rozo, Mercury News, 1 Apr. 2025 Unfortunately, her own post didn't show that ideal, gleeful reaction. Zoey Lyttle, People.com, 21 Mar. 2025 See All Example Sentences for reaction

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“Reaction.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/reaction. Accessed 5 Apr. 2025.

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