hyperexcitability
noun
hy·per·ex·cit·abil·i·ty
| \ ˌhī-pə-rik-ˌsīt-ə-ˈbil-ət-ē
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plural hyperexcitabilities
Medical Definition of hyperexcitability
: the state or condition of being unusually or excessively excitable
a period of hyperexcitability of all or most of the reflexes— S. W. Jacob