reactivity
noun
re·ac·tiv·i·ty
| \ (ˌ)rē-ˌak-ˈti-və-tē
\
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Definition of reactivity
: 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
Examples of reactivity in a Sentence
Recent Examples on the Web
The above is just a brief description on how to work with your dog’s reactivity to other dogs. — Tasha Suda, The Mercury News, "Critter Corner: Controlling a dog’s anxiety when seeing other dogs on walks," 20 Aug. 2019 This slows your ability to process information and solve problems, kills your creativity, and increases your emotional reactivity. — Dr. Travis Bradberry, Quartz at Work, "Nine skills you should learn that pay off forever," 13 Aug. 2019 Barrett is more than capable of making reads and delivering assists, but the issue might be that his game lacks a degree of reactivity and improvisation. — Jeremy Woo, SI.com, "Top 10 Rookie Takeaways From NBA Summer League," 16 July 2019 The answer came to him in a dream: columns of similar reactivity and rows of ascending weight. — Andrew Crumey, WSJ, "‘Mendeleyev’s Dream’ and ‘Elemental’ Review: Cracking the Chemical Code," 21 June 2019 This chemical reactivity, says McGonigal, looks a lot like the biology of courage. . — Kate Branch, Vogue, "Now, Experts Say Stress Can Be Good for Your Health—Really," 18 Dec. 2018 Early in life, the mere presence of a parent reduces a child’s levels of cortisol, a major stress hormone, and downregulates their amygdala reactivity. — Dylan Gee, Vox, "I study kids who were separated from their parents. The trauma could change their brains forever.," 20 June 2018 Parents are an integral piece in a powerful system for regulating children’s stress and emotional reactivity. — Dylan Gee, Vox, "I study kids who were separated from their parents. The trauma could change their brains forever.," 20 June 2018 Scientists can look at the brains of young mammals — whether humans, rats, or monkeys — when they’re separated from their mothers and see reactivity in the amygdala, which controls the fight-or-flight response. — Katherine Reynolds Lewis, The Cut, "Can Scientists Tell Me If I’m a Good Mom?," 17 Apr. 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'reactivity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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