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Adjective stimulant has 1 sense
  1. stimulant, stimulating - that stimulates; "stimulant phenomena"
    Antonym: depressant (indirect, via stimulative)
,Noun stimulant has 2 senses
  1. stimulation, stimulus, stimulant, input - any stimulating information or event; acts to arouse action
    --1 is a kind of information
    --1 has particulars:
     evocation, induction, elicitation; kick; turn-on; turnoff, negative stimulation; conditioned stimulus; reinforcing stimulus, reinforcer, reinforcement; discriminative stimulus, cue; positive stimulus; negative stimulus
    Derived form: verb stimulate1
  2. stimulant, stimulant drug - a drug that temporarily quickens some vital process
    --2 is a kind of drug
    --2 has particulars:
     amphetamine, pep pill, upper, speed; analeptic; aphrodisiac; butyl nitrite, isobutyl nitrite; kat, khat, qat, quat, cat, Arabian tea, African tea; methylphenidate, Ritalin; popper
    Derived form: verb stimulate4
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