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Definition of "presynaptic" [presynaptic]

  • Situated in front of or occurring before a synapse: a presynaptic nerve fiber; a presynaptic stimulus. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "presynaptic" in a sentence
  • "Thus, phosphorylation of serine-413 of RIM1α is not essential for PKA-dependent long-term presynaptic plasticity"
  • "The lack of an effect of the serine-413 mutation of RIM1α is not due to compensation by RIM2α because mice carrying both the serine-413 substitution and a RIM2α deletion still exhibited normal long-term presynaptic plasticity."
  • "Locally it blocks the initiation and propagation of nerve impulses along an axon by interference with sodium permeability during depolarization. 3,11 Centrally it blocks the presynaptic reuptake of norepinephrine and dopamine."