Definition of stimulant noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈstɪmjələnt//
    ; NAmE NAmE//ˈstɪmjələnt//
    (formal) Addiction
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  1. 1 a drug or substance that makes you feel more awake and gives you more energy Coffee and tea are mild stimulants. See related entries: Addiction
  2. 2stimulant (to something) an event or activity that encourages more activity
  3. Word Originearly 18th cent.: from Latin stimulant- ‘urging, goading’, from the verb stimulare.
See the Oxford Advanced American Dictionary entry: stimulant