[bi.po.lar] adj (1810) 1: having or marked by two mutually repellent forces or diametrically opposed natures or views
2. a: having or involving the use of two poles or polarities b: relating to, being, or using a transistor in which both electrons and holes are utilized as charge carriers
3: relating to, associated with, or occurring in both polar regions "~ species of birds"
4: characterized by the alternation of manic and depressive states "a ~ affective disorder" -- bi.po.lar.i.ty n -- bi.po.lar.iza.tion n -- bi.po.lar.ize vt