Medical Definition of depolarize
depolarized or British depolarised; depolarizing or British depolarising
transitive verb: to cause (a muscle or nerve cell) to undergo depolarization <In order to establish whether or not this type of capacitor discharge would depolarize the entire heart, it was tested as a cardiac defibrillator.—Bernard Lown et al., The Journal of the American Medical Association, 1 Aug. l986>
intransitive verb: to undergo depolarization <Smooth muscle cells in small arteries depolarize and contract in response to increased intravascular pressure.—Joseph E. Brayden and Mark T. Nelson, Science, 24 Apr. 1992>
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