reactivity

re ac tiv i ty |ˌrēˌakˈtivətē ˌriˌækˈtɪvədi | ▶noun the state or power of being reactive or the degree to which a thing is reactive. • the extent to which a nuclear reactor deviates from a steady state.

reactivity

re |activ |ity |rɪˈakˈtɪvɪti | ▶noun [ mass noun ] the quality of being reactive or the degree to which something is reactive. • the extent to which a nuclear reactor deviates from a steady state.