reactivity
noun
- impetus for which a chemical substance undergoes a chemical reaction, either by itself or with other materials, with an overall release of energy
- measure of the criticality of a nuclear chain reacting material
Wiktionary
Pronunciation: /rɪˈakˈtɪvɪti/
noun
Etymology: Etymology tree English react Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus Old French -ifbor. Middle English -yf English -ive English reactive Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English reactivity From reactive + -ity.
- responsiveness to stimulation
- relative susceptibility to chemical reaction