adj \-sə-ˈnap-tik\

Definition of PRESYNAPTIC

: relating to, occurring in, or being part of a nerve cell by which a wave of excitation is conveyed to a synapse <presynaptic terminals> <presynaptic inhibition> <a presynaptic membrane>
pre·syn·ap·ti·cal·ly \-ti-k(ə-)lē\ adverb

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