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depolarization

B2
Uncommon

Pronunciation

UK

  • /diːpˌəʊləraɪzˈeɪʃən/

US

    Meanings

    Noun

    1. the reduction of the electrical charge difference across a cell membrane during activation

    2. the reduction or loss of polarization in light, waves, or another physical system

    3. the reduction of strong political or social polarization between groups

    Beyond the definition

    Imagine a world split into two opposite poles—north and south. Polarization is the state of being pulled toward those far extremes. Depolarization, then, is the process of lessening that pull and reducing the distance between the two sides. It is about moving away from the edges and toward a more balanced, neutral ground.

    You might see depolarization in politics when people from opposing parties start finding common ground. Or think of a heated argument—depolarization happens when both sides calm down and begin to understand each other's perspectives. In science, especially biology (think nerve cells!), it can refer to a change in electrical charge across a cell membrane that helps signals travel. Whether it's happening in a society or within a single cell, depolarization is about reducing tension and bridging a gap.

    Examples

    1. 1

      Nerve signals

      The drug slows depolarization in nerve cells, so pain signals do not travel as easily.

    2. 2

      ECG reading

      The ECG shows ventricular depolarization just before the heart contracts.

    3. 3

      Political division

      Some educators hope that open discussion can lead to depolarization rather than deeper political division.

    See also

    Similar

    • reduced membrane polarization
    • loss of membrane polarity

    Contrast

    Used with (collocations)

    • membrane depolarization
    • neuronal depolarization
    • depolarization phase
    • cardiac depolarization

    Word family

    Explore

    • action potential
    • resting membrane potential

    Forms and spellings

    1 form open this card.

    Main spelling

    • depolarizationnoun