- A substance which elicits an active physiological or behavioural response: what happens when chemical excitants flood into the brain?More example sentences
- 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.
- The resulting synaptic inhibition is characterized by either a depressant or an excitant effect, depending on the population of cells involved.
More definitions of excitantDefinition of excitant in:
- The US English dictionary