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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Word of the day skosh
Pronunciation: skōSH
a small amount; a little