Definition of excitant in English:


Syllabification: ex·cit·ant
Pronunciation: /ikˈsītnt


A substance that elicits an active physiological or behavioral response.
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.


early 17th century: perhaps suggested by French excitant.

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