Definition of "synaptic"

synaptic

adjective
not comparable
1. (physiology) Of or relating to a synapse—the junction between the terminal of a neuron and another cell.
  Quotations
  With a pencil, he highlights areas where synaptic function is declining, where the neurons are dying.
  2020, Avni Doshi, Burnt Sugar, Hamish Hamilton, page 6
2. (cytology) Of or relating to a synapsis—the association of homologous maternal and paternal chromosomes during the initial part of meiosis.
  Quotations
  By far the greater proportion of cytologists however are of the opinion that the synaptic contraction is a normal stage in the heterotypic prophases.
  1913, Frederick McAllister, On the cytology and embryology of Smilacina racemosa