piān​jí​huà

polarization

偏极化 (偏極化) piān​jí​huà
polarization verb
the property or process of transverse waves, such as light or radio waves, being restricted to a specific orientation or plane of vibration
polarized verb
the state or process of a group or its opinions being divided into two sharply contrasting or opposing camps

Sources

Definitions
CC-CEDICT