depolarize

verb de·po·lar·ize \ (ˌ)dē-ˈpō-lə-ˌrīz \
|Updated on: 12 Jun 2018

Definition of depolarize

depolarized; depolarizing; depolarizes
1 : to cause to become partially or wholly unpolarized
2 : to prevent or remove polarization of (something, such as a particle (see particle 3) or dry cell)
  • After all, if a positive muon managed to capture one of the many electrons that are free to move about in graphite, the electron could easily depolarize (mess up the spin of) the muon so that they would not all be doing the same thing in lockstep.
  • —Leon Lederman et al.
3 physiology : 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.
physiology
: 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

depolarization

play \(ˌ)dē-ˌpō-lə-rə-ˈzā-shən\ noun

depolarizer

play \(ˌ)dē-ˈpō-lə-ˌrī-zər\ noun, plural depolarizers

Recent Examples of depolarize from the Web

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

First Known Use of depolarize

1814

in the meaning defined at sense 1

See Words from the same year
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Medical Dictionary

depolarize

verb de·po·lar·ize
variants: or British depolarise play \(ˈ)dē-ˈpō-lə-ˌrīz\

medical Definition of depolarize

depolarized or British depolarised; depolarizing or British depolarising
: 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 Association1 Aug. l986
: to undergo depolarization
  • Smooth muscle cells in small arteries depolarize and contract in response to increased intravascular pressure.
  • —Joseph E. Brayden and Mark T. NelsonScience24 Apr. 1992

depolarizer

or British depolariser play \-ˌrī-zər\ noun

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