repolarization
Americannoun
plural
repolarizations-
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.
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 depolarization, repolarization, and hyperpolarization, which are necessary to fire an action potential and then return the cell to the resting state.
From Textbooks • Jun. 9, 2022
Lastly, the T wave represents the repolarization of the ventricles.
From Textbooks • Jun. 19, 2013
At this point, the calcium ion channels close and K+ channels open, allowing outflux of K+ and resulting in repolarization.
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
Figure 19.20 Action Potential at the SA Node The prepotential is due to a slow influx of sodium ions until the threshold is reached followed by a rapid depolarization and 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.
