reactivity

Noun reactivity has 2 senses

• reactivity(n = noun.cognition) responsiveness - responsive to stimulation;
is a kind of sensibility, sensitiveness, sensitivity
has particulars: excitability, irritability
Derived form adjective reactive₂

• reactivity(n = noun.state) - ready susceptibility to chemical change;
is a kind of susceptibility, susceptibleness
Derived form adjective reactive₁