Referring to neural pathways formed by a chain of a large number of synaptically connected nerve cells, as distinguished from oligosynaptic conduction systems. SYN: multisynaptic.
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poly·syn·ap·tic .päl-i-sə-'nap-tik adj involving two or more synapses in the central nervous system <\polysynaptic reflexes>
poly·syn·ap·ti·cal·ly -ti-k(ə-)lē adv
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poly·sy·nap·tic (pol″e-sĭ-napґtik) involving many synapses in series and therefore a sequence of many neurons; called also multisynaptic. Cf. oligosynaptic.Medical dictionary. 2011.