a.
- 反應性的；易反應的
- 反作用的；反動的
reactive
KK:[rɪˈæktɪv] DJ:[riˈæktiv]
以上來源於：《英漢大辭典》
adj.
- showing a response to a stimulus.
- acting in response to a situation rather than creating or controlling it.
- having a tendency to react chemically.
- Physiology showing an immune response to a specific antigen.
- (of an illness) caused by a reaction to something.
- Physics relating to reactance.
Derivative
- reactivity n.
以上來源於：《簡明牛津英語詞典》