depolarization

noun
de·​po·​lar·​i·​za·​tion | \ (ˌ)dē-ˌpō-lə-rə-ˈzā-shən How to pronounce depolarization (audio) \

Definition of depolarization

1 : the process of depolarizing something or the state of being depolarized
2 physiology : loss of the difference in charge between the inside and outside of the plasma membrane of a muscle or nerve cell due to a change in permeability and migration of sodium ions to the interior … partial depolarization of the ventricular tissue resulting from rapid conduction of the electrical impulse from the atrium to the ventricle …— Mark S. Link

First Known Use of depolarization

circa 1814, in the meaning defined at sense 1

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The first known use of depolarization was circa 1814

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Cite this Entry

“Depolarization.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/depolarization. Accessed 7 Jul. 2020.

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More Definitions for depolarization

depolarization

noun
de·​po·​lar·​iza·​tion
variants: or British depolarisation \ (ˌ)dē-​ˌpō-​lə-​rə-​ˈzā-​shən How to pronounce depolarisation (audio) \

Medical Definition of depolarization

: loss of polarization especially : loss of the difference in charge between the inside and outside of the plasma membrane of a muscle or nerve cell due to a change in permeability and migration of sodium ions to the interior … partial depolarization of the ventricular tissue resulting from rapid conduction of the electrical impulse from the atrium to the ventricle … — Mark S. Link, The New England Journal of Medicine, 11 Oct. 2012

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