hyperexcitable

adjective
hy·per·ex·cit·able | \ˌhī-pər-ik-ˈsī-tə-bəl \
variants: or hyper-excitable

Definition of hyperexcitable 

: extremely or excessively excitable hyperexcitable children Dr. Walters believes that for a nerve cell to become hyperexcitable when it or its neighbor has been injured makes evolutionary sense.— Natalie Angier

Other Words from hyperexcitable

hyperexcitability \ˌhī-pər-ik-ˌsī-tə-ˈbi-lə-tē \ or hyper-excitability noun
hyperexcitability of motor neurons a medication that can cause hyperexcitability

First Known Use of hyperexcitable

1870, in the meaning defined above

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The first known use of hyperexcitable was in 1870

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