EXCITATORY POSTSYNAPTIC POTENTIAL
\ɛksˈɪtətəɹˌi pˌə͡ʊstsɪnˈaptɪk pətˈɛnʃə͡l], \ɛksˈɪtətəɹˌi pˌəʊstsɪnˈaptɪk pətˈɛnʃəl], \ɛ_k_s_ˈɪ_t_ə_t_ə_ɹ_ˌi p_ˌəʊ_s_t_s_ɪ_n_ˈa_p_t_ɪ_k p_ə_t_ˈɛ_n_ʃ_əl]\
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The change in potential produced in the membrane of the next neuron when an impulse which has an excitatory influence arrives at the synapse; it is a local change in the direction of depolarization; summation of these potentials can lead to discharge of an impulse by the neuron. (Stedman, 26th ed)
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