bi·po·lar /(ˌ)baɪˈpolɚ/
  (a.)有兩極的,雙極的
  bi·po·lar /(ˈ)baɪˈpolɚ/ 形容詞
  雙極的,兩極的,兩極(神經)細胞
  bipolar
  雙極性的; 雙極體
  bipolar
  雙極
  Bi·po·lar a.  Doubly polar; having two poles; as, a bipolar cell or corpuscle.
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  bipolar
       adj 1: of or relating to manic depressive illness
       2: of, pertaining to, or occurring in both polar regions; "the
          bipolar distribution of certain species"
       3: having two poles [ant: unipolar]