Definition of polysynaptic in English:

polysynaptic

Pronunciation /ˌpɒlɪsɪˈnaptɪk/

adjective

Biology Physiology
  • Involving several synapses; specifically designating a reflex that involves more than one synapse (primarily within the central nervous system), and a nervous impulse that requires more than one neuronal junction for its propagation.

Origin

1940s. From poly- + synaptic.