polarization

polarization
polarisation, / ˌpəuləraɪˈzeɪʃn; ?@ -rɪˈz-;ˌpolərə`zeʃən/ n [C, U]
act of polarizing; state of being polarized 偏振（现象）; 极化（作用）; 两极分化.

牛津英汉双解词典