Dictionary.com
Thesaurus.com

presynaptic

American  
[pree-si-nap-tik] / ˌpri sɪˈnæp tɪk /

adjective

Physiology.
  1. being or occurring on the transmitting end of a discharge across a synapse.


Other Word Forms

Etymology

Origin of presynaptic

1905–10; pre- + synaptic ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

To examine how these networks function, he used the patch-clamp technique, which measures tiny electrical signals within specific parts of neurons, including presynaptic terminals and dendrites.

From Science Daily May 3, 2026

Synaptic versicles -- sphere-like structures that store and release neurotransmitters such as dopamine and serotonin, are found in the presynaptic terminals of neurons.

From Science Daily Dec. 3, 2024

Additionally, one neuron often has inputs from many presynaptic neurons—some excitatory and some inhibitory—so IPSPs can cancel out EPSPs and vice versa.

From Textbooks Jun. 9, 2022

The neuron transmitting the signal is called the presynaptic neuron, and the neuron receiving the signal is called the postsynaptic neuron.

From Textbooks Jun. 9, 2022

Calcium ions entering the cell initiate a signaling cascade that causes small membrane-bound vesicles, called synaptic vesicles, containing neurotransmitter molecules to fuse with the presynaptic membrane.

From Textbooks Jun. 9, 2022

Vocabulary.com logo
by dictionary.com

Join 14,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training