post·​syn·​ap·​tic | \ ˌpōs(t)-sə-ˈnap-tik How to pronounce postsynaptic (audio) \

Definition of postsynaptic

1 : occurring after synapsis a postsynaptic chromosome
2 : of, occurring in, or being a nerve cell by which a wave of excitation is conveyed away from a synapse a postsynaptic membrane

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Other Words from postsynaptic

postsynaptically \ ˌpōs(t)-​sə-​ˈnap-​ti-​k(ə-​)lē How to pronounce postsynaptic (audio) \ adverb

Examples of postsynaptic in a Sentence

Recent Examples on the Web And every one of these billions and billions and billions of action potentials and postsynaptic potentials across the 10 quadrillion synapses connecting the neurons in the human brain are all taking place independent of each other. Gabriel A. Silva, Forbes, 19 Apr. 2021 What’s the consequence of all the work required to generate an action potential in the postsynaptic neuron? Gabriel A. Silva, Forbes, 19 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'postsynaptic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of postsynaptic

1909, in the meaning defined at sense 1

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Time Traveler for postsynaptic

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The first known use of postsynaptic was in 1909

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Cite this Entry

“Postsynaptic.” Dictionary, Merriam-Webster, Accessed 17 Oct. 2021.

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post·​syn·​ap·​tic | \ ˌpōst-sə-ˈnap-tik How to pronounce postsynaptic (audio) \

Medical Definition of postsynaptic

1 : occurring after synapsis a postsynaptic chromosome
2 : relating to, occurring in, or being part of a neuron that receives a nerve impulse after it has crossed a synapse postsynaptic dopamine receptors At a synapse, information in the form of chemicals called neurotransmitters flows from the so-called presynaptic cell to one dubbed the postsynaptic cell.— Joe Z. Tsien, Scientific American, April 2000

Other Words from postsynaptic

postsynaptically \ -​ti-​k(ə-​)lē How to pronounce postsynaptic (audio) \ adverb


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