/'stɪmjʊlənt; `stɪmjələnt/
n
1 (drink containinga) drug that increases physical or mental activity and alertness 兴奋剂; 含兴奋剂的饮料
*Coffee and tea are mild stimulants. 咖啡和茶都是平和的兴奋剂.
* [attrib 作定语] stimulant drugs 兴奋剂.
2 ~ (to sth) event, activity, etc that encourages greater or further activity 起刺激、激励作用的事情、活动等
*It is hoped the tax cuts will act as a stimulant to further economic growth. 希望降低税率这一措施能刺激经济进一步增长.

n[C]
a drug or substance that makes you feel more active and full of energy
　artificial stimulants
something that encourages more of a particular activity
= stimulus
　economic stimulants
stimulant to
　Increases in new construction would be a stimulant to the economy.
>stimulantadj
　a drug with stimulant properties