excitable

ex·cit·able

adj \ik-ˈsīt-ə-bəl\

Definition of EXCITABLE

of living tissue or an organism : capable of being activated by and reacting to stimuli : exhibiting irritability <the biochemistry of excitable membranes—Science>

—ex·cit·abil·i·ty \-ˌsīt-ə-ˈbil-ət-ē\ noun, plural ex·cit·abil·i·ties