polarization

noun

po·​lar·​i·​za·​tion ˌpō-lə-rə-ˈzā-shən How to pronounce polarization (audio)
plural polarizations
1
: division into two sharply distinct opposites
especially : a state in which the opinions, beliefs, or interests of a group or society no longer range along a continuum but become concentrated at opposing extremes
political polarization
… the relationship between partisan polarization and legislative gridlock is direct, with stalemate more frequent as the political center shrinks. Sarah A. Binder
The drift in our society now is not toward a grouping around the middle, but toward polarization. Richard Todd
… the venue where our most fractious … arguments over identity occur: the internet. These arguments do not play out on a democratized playing field where all identities are weighted equally; rather, they play out in a meticulously crafted environment where identities are microtargeted and polarization is amplified by algorithms. Emma Levy
2
: the action of polarizing or state of being or becoming polarized: such as
a(1)
: the action or process of affecting radiation and especially light so that the vibrations of the wave assume a definite form
(2)
: the state of radiation affected by this process
b
: an increase in the resistance of an electrolytic cell often caused by the deposition of gas on one or both electrodes

Examples of polarization in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
His assassination in Utah this week has left the country reeling, stirring questions about the state of democracy due to the rise of ideological polarization and political violence that many fear threatens the pillars of unfettered free speech and other constitutional rights. Emily Hallas, The Washington Examiner, 12 Sep. 2025 The Republican governor has long championed civility in public discourse and has been an outspoken critic of political polarization. Swapna Venugopal Ramaswamy, USA Today, 12 Sep. 2025 The polarization was vividly displayed on the eve of the start of the trial, when tens of thousands of Brazilians took to the streets to express their views in favor and against Bolsonaro’s prosecution. Omar G. Encarnación, Time, 12 Sep. 2025 The identity and motivation of the shooter is not yet known but Kirk's death has reignited concerns of deepening political polarization and violence in the country. Kate Plummer, MSNBC Newsweek, 12 Sep. 2025 See All Example Sentences for polarization

Word History

First Known Use

1812, in the meaning defined at sense 2

Time Traveler
The first known use of polarization was in 1812

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Cite this Entry

“Polarization.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polarization. Accessed 16 Sep. 2025.

Medical Definition

polarization

noun
po·​lar·​iza·​tion
variants also British polarisation
: the action of polarizing or state of being or becoming polarized: as
a(1)
: the action or process of affecting radiation and especially light so that the vibrations of the wave assume a definite form
(2)
: the state of radiation affected by this process
b
: an increase in the resistance of an electrolytic cell caused by the deposition of gas on one or both electrodes

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