Definition of excitant in English:

excitant

Pronunciation /ɛkˈsʌɪt(ə)nt//ˈɛksɪt(ə)nt//ɪkˈsʌɪt(ə)nt/

noun

Biology
  • A substance which elicits an active physiological or behavioural response.

    ‘what happens when chemical excitants flood into the brain?’
    • ‘The resulting synaptic inhibition is characterized by either a depressant or an excitant effect, depending on the population of cells involved.’
    • ‘Some people find that coffee brings out tremor; this is due to the presence of caffeine, which is an excitant; these effects are not, however, universal.’
    tonic, restorative, reviver, energizer, refresher
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Pronunciation

excitant

/ˈɛksɪt(ə)nt//ɪkˈsʌɪt(ə)nt/