excitant

adjective

ex·​ci·​tant ik-ˈsī-tᵊnt  ˈek-sə-tənt 

: tending to excite or stimulate

excitant drugs

excitant noun

Word History

First Known Use

1607, in the meaning defined above

Medical Definition

excitant

1 of 2 adjective

ex·​ci·​tant ik-ˈsīt-ᵊnt  ˈek-sət-ənt 

: tending to excite or augment

excitant drugs

excitant

2 of 2 noun

: an agent that arouses or augments physiological activity (as of the nervous system)