repolarization
Americannoun
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the act or process of undergoing or causing to undergo polarization again.
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Medicine/Medical. the movement of potassium ions out of cardiac cells after contraction of the heart, returning the cells to their resting state for the next depolarization.
Other Word Forms
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.
The cell would not undergo repolarization, which is necessary to fire an action potential and then return the cell to the resting state.
From Textbooks • Jun. 9, 2022
The repolarization of the atria occurs during the QRS complex, which masks it on an ECG.
From Textbooks • Jun. 19, 2013
If depolarization reaches -55 mV, then the action potential continues and runs all the way to +30 mV, at which K+ causes repolarization, including the hyperpolarizing overshoot.
From Textbooks • Jun. 19, 2013
ACh slows HR by opening chemical- or ligand-gated potassium ion channels to slow the rate of spontaneous depolarization, which extends repolarization and increases the time before the next spontaneous depolarization occurs.
From Textbooks • Jun. 19, 2013
In this case, there is a rapid depolarization, followed by a plateau phase and then repolarization.
From Textbooks • Jun. 19, 2013
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
