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stimulant

noun
🔊/ˈstɪmjələnt/
🔊/ˈstɪmjələnt/
 (formal)
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  1. a drug or substance that makes you feel more active and gives you more energy兴奋剂
    • Coffee and tea are mild stimulants.咖啡和茶是轻度兴奋剂。🔊🔊
    Topics Social issuesc2
  2. stimulant (to something) an event or activity that encourages more activity有激励作用的事物
    3. Word Originearly 18th cent.: from Latin stimulant- ‘urging, goading’, from the verb stimulare.