Definition of reactivity in English:

reactivity

noun

mass noun
  • 1The quality of being reactive or the degree to which something is reactive.

    ‘the chemical and biological reactivity of non-target organisms’
    in combination ‘cross-reactivity between the hormones of human and bovine origin’
    • ‘Our results suggest that airway wall thickening attenuates airway reactivity in patients with asthma.’
    • ‘In its simplest form, it provides qualitative explanations for the formation and reactivity of molecules.’
    • ‘The chemical reactivity of titanium to the halides is similarly exhibited by its combination with their acids.’
    • ‘The most significant component in array validation is the comprehensive evaluation of cross reactivity.’
    • ‘Pituitary adenomas exhibited intense diffuse cytoplasmic reactivity.’
    • ‘The good news is that the change of a single amino acid in the major peanut allergen can reduce reactivity.’
    • ‘Skin test reactivity was also a significant predictor of maximal lung growth in those with respiratory symptoms regardless of sex.’
    • ‘We measured the tracheal smooth muscle reactivity to methacholine.’
    • ‘For the women who scored low on extraversion, no brain reactivity to positive stimuli was found.’
    • ‘Interpretation relies on the presence or absence of reactivity to the specific antigens.’
    • ‘In particular, we examined whether pulmonary function and nonspecific airway reactivity differed depending on atopic status.’
    • ‘Basically, it's a lot of airway reactivity and a lot of inflammation.’
    • ‘Acid reflux has been associated with bronchospasm, heightened bronchial reactivity, and airway edema.’
    • ‘Unfortunately, no postexposure measurement of bronchial reactivity was performed.’
    • ‘Finally, the qualitative data provide additional support for the notion of cue reactivity.’
    • ‘Thus, one manifestation of the lack of differentiation of self is emotional reactivity.’
    • ‘The effect of skin test reactivity remained significant for all symptoms except exercise-induced wheeze.’
    • ‘In another asthma model, airway reactivity and lung inflammation were enhanced in the lung.’
    • ‘There was no evidence that the magnitude of the effect on allergen skin test reactivity differed between the three parasites.’
    • ‘Once a worker is sensitized to an occupational agent, bronchial reactivity usually persists.’
    responsiveness, sensitiveness
    View synonyms
    1. 1.1 The extent to which a nuclear reactor deviates from a steady state.
      ‘simulations predict that high rates of reactivity addition to the core could occur’
      • ‘The temperature changes in turn modify the reactivity through different nuclear physics processes, which has a well defined influence on the number of neutrons ready to induce fission.’
      • ‘The spectrum of nuclear reactivity, including intensity and extent, was graded for all categories as shown in Tables 2 and 3.’
      • ‘Because of the instability, an RBMK reactor that loses its coolant can under certain circumstances increase in reactivity and run progressively faster and hotter rather than shut itself down.’

Pronunciation

reactivity

/rɪˈakˈtɪvɪti/