I. ikˈsīt ə nt, ekˈ-; ˈeksəd.ənt, -sətənt also -sət ə nt adjective
Etymology: Latin excitant-, excitans, present participle of excitare
: tending to excite : exciting
an excitant drug
II. noun
( -s )
: something that excites ; usually : an agent that arouses or augments physiologic (as nervous) activity