Noun: reactivity ,ree,ak'ti-vu-tee
- Responsive to stimulation
"The material's reactivity with water made it unsuitable for outdoor use";
- responsiveness
- Ready susceptibility to chemical change
"The high reactivity of the metal made it difficult to store safely"
Derived forms: reactivities
Type of: sensibility, sensitiveness, sensitivity, susceptibility, susceptibleness
Encyclopedia: Reactivity