ex·cit·ato·ry adj \ik-ˈsīt-ə-ˌtōr-ē, -ˌtȯr-\
: tending to induce excitation (as of a neuron) <excitatory substances> <excitatory and inhibitory pathways from the brain—W. G. Van der Kloot>
: exhibiting, resulting from, related to, or produced by excitement or excitation <an excitatory postsynaptic potential>
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