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BNC: 28051 COCA: 22854
BNC: 28051 COCA: 22854

reactivity

noun

re·​ac·​tiv·​i·​ty (ˌ)rē-ˌak-ˈti-və-tē How to pronounce reactivity (audio)
: the quality or state of being reactive
emotional reactivity
chemical reactivity
If the brain, responding to psychological stress, stimulates the release of cortisol and cortisol suppresses the reactivity of the immune system, then a dormant viral infection may well flare up, or a new one catch hold. Matt Ridley
Abnormal reactivity to light and abnormal pupillary size may be important clues to the presence of cranial injury in the setting of head trauma. Bradford J. Shingleton

Example Sentences

Recent Examples on the Web But in what ways, exactly, does microglial reactivity damage the brain, and how might this damage contribute to cognitive dysfunction? William A. Haseltine, Forbes, 2 Aug. 2022 Ohio’s reactivity clause has a similar prohibition, Brunner wrote. Laura Hancock, cleveland, 21 July 2022 The next article in this series focuses on the consequences of such sustained microglial reactivity, particularly in the white matter regions of the brain. William A. Haseltine, Forbes, 1 Aug. 2022 Fire hazards are problematic with the non-aqueous electrolytes in lithium batteries; add sodium's reactivity with the environment, and the hazards are severe. John Timmer, Ars Technica, 6 July 2022 These stories are all around us as the day-to-day reactivity that pervades professional life takes its toll. Andrew Deutscher, Forbes, 15 Mar. 2022 Pathological vigilance, irritability and jumpiness, known as reactivity, feel like flight responses that have outlived their purpose. New York Times, 5 July 2022 In one-on-one meetings with your employees, actively teach them how to move away from reactivity. Ron N Hurst, Forbes, 22 Oct. 2021 Emerging data on adolescents abroad show that emotional reactivity—when emotions are unstable in response to the stressors of ordinary life—increased during the pandemic. Arthur C. Brooks, The Atlantic, 28 Apr. 2022 See More

Word History

First Known Use

1832, in the meaning defined above

Time Traveler
The first known use of reactivity was in 1832
BNC: 28051 COCA: 22854

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