polarization
US /ˌpoʊ.lɚ.əˈzeɪ.ʃən/
UK /ˌpoʊ.lɚ.əˈzeɪ.ʃən/
1.
the action of restricting the vibrations of a transverse wave, especially light, wholly or partially to one direction.
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The polarization of light can be observed using a polarizing filter.
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Circular polarization is a type of electromagnetic radiation.
2.
division into two sharply contrasting groups or sets of opinions or beliefs.
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The political landscape is marked by increasing polarization.
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Social media has contributed to the polarization of public opinion.