Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

depolarization

noun de·po·lar·iza·tion

Medical Definition of depolarization

  1. :  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>



Variants of depolarization

or British depolarisation \(ˌ)dē-ˌpō-lə-rə-ˈzā-shən\play

Seen and Heard

What made you want to look up depolarization? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to work hard

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

oily angry maudlin prompt
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ