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

Seen & Heard

What made you want to look up excitable? Please tell us where you read or heard it (including the quote, if possible).